Welcome to the world of culinary convenience and flavor! Learning how to make pickled red onions is an incredibly simple process, taking mere minutes to prepare, and you likely already have all the necessary ingredients in your pantry. Once you discover the magic of these vibrant, tangy slices, you’ll love having a jar readily available in your fridge. They are the ultimate versatile topping, perfect for elevating everything from your favorite tacos and gourmet avocado toast to a myriad of other delightful dishes. Get ready to transform your meals with this essential condiment!
Recipe Highlights
Why you’ll love this recipe: This no-cook method is incredibly quick, surprisingly easy, and creates a delicious condiment that keeps beautifully in your refrigerator for up to three weeks. It’s a game-changer for adding instant zest to any meal.
How long it takes: You’ll spend just 5 minutes on active preparation, followed by a brief 55-minute marination period to achieve that perfect tangy flavor.
Essential equipment: All you need is a sharp chef’s knife or a mandoline for slicing, a reliable measuring cup, and a small, clean jar for storage.
Yields: This recipe typically makes 8 servings, providing plenty of pickled onions to enjoy over several meals.
The Unrivaled Charm of Pickled Red Onions
If you’re already connected with me on Instagram, you’ve likely witnessed my profound, bordering on obsessive, love for pickled red onions. I’m talking about a true culinary fixation – incorporating them into three meals a day is not uncommon in my household!
P.S. If you haven’t yet joined my community on Instagram, I wholeheartedly invite you to hop over and explore my feed! You’ll get exclusive behind-the-scenes glimpses into my kitchen adventures and daily food inspirations through my stories.
My journey into the world of pickled red onions began quite serendipitously. It was for my daughter’s birthday party, just a couple of weeks after we’d settled into our new home. We decided on a festive taco bar, complete with all the essential fixings. Beyond the star attraction of tacos, I meticulously prepared a spread of complementary dishes: my irresistible Cheesy Baked Corn with Bacon and Jalapeño, hearty Homemade Refried Beans, fragrant Cilantro Lime Rice, refreshing from-scratch Margaritas, and two distinct salsas – my crowd-pleasing Restaurant Style Salsa and a smoky Chipotle Salsa. And, of course, no taco bar is complete without the perfect batch of guacamole!
It was on a whim that I decided to add pickled red onions to the menu. Their bright, tangy crunch is an ideal counterpoint to almost any Mexican dish, and tacos are certainly no exception. I was genuinely astonished at how rapidly they vanished from the serving station – even quicker than the cheese! Though, admittedly, the margaritas still held the top spot for fastest disappearance. From that day forward, these quick pickles earned a permanent residence in my refrigerator. Now, when you peek inside, you’ll almost always find a jar of these beautiful pink onions nestled comfortably next to the salsa, ketchup, and mustard. Once you master this incredibly simple technique, I’m confident they’ll become a constant, beloved fixture in your fridge as well.
Versatile Ways to Enjoy Pickled Red Onions
Are tacos the *only* way to enjoy the delightful tang of pickled onions? Absolutely not! You’ll soon discover that these vibrant, zesty onions make an exquisite topping for an astonishing array of dishes, instantly enhancing their flavor and adding a burst of color.
- For Breakfast & Brunch: Elevate your morning routine by adding them to avocado toast. The tangy, slightly sweet crunch of pickled red onions provides the perfect counterpoint to the rich, creamy texture of avocado, creating a harmonious flavor profile. If avocado isn’t your preference, try topping fluffy scrambled eggs, savory breakfast burritos, or your favorite breakfast sandwiches with a forkful or two. They introduce a bright, fresh element that “jams up” the dish without being overwhelmingly oniony or strong.
- With Vegetables & Sides: These pickled beauties pair wonderfully with roasted vegetables. Imagine them atop southwestern-style Oven Roasted Sweet Potatoes or alongside crispy golden Roasted Potatoes. For a lighter, healthier alternative to sour cream, pile them onto a steaming Baked Potato, adding a flavorful, low-fat kick.
- With Main Dishes & Sandwiches: Incorporate pickled red onions into your main courses for an instant flavor upgrade. They are exceptional with grilled chicken, offering a bright acidity that cuts through the richness. Pile them onto sandwiches, wraps, or even burgers, where they can often take the place of more traditional condiments, providing a unique texture and taste. We absolutely adore them on hearty pulled pork sandwiches! And don’t forget pizza – a scattering of pickled red onions post-bake adds an unexpected, delicious zing. The possibilities are truly endless; you’ll wonder how you ever managed without them!
Gather Your Simple Ingredients
One of the many joys of this recipe is its minimal ingredient list, comprising items you likely already have on hand. Each component plays a vital role in creating that perfect balance of tangy, sweet, and savory flavor.
- Red Onion: While the striking, vibrant pink hue of a red onion is truly appealing and adds a beautiful visual element to the finished product, it’s not strictly necessary. Other types of onions, such as yellow or white, will also pickle wonderfully, yielding a similar tangy flavor profile. Feel free to use what you have, though the red onion does offer that extra aesthetic charm.
- Apple Cider Vinegar: This is my personal vinegar of choice for pickling due to the subtle, fruity sweetness and mild tang it imparts. I typically keep a large bottle on hand, making it a convenient staple. However, you have several excellent substitutes if apple cider vinegar isn’t available: white wine vinegar, rice vinegar, or even plain white distilled vinegar will work perfectly. You can also experiment by using a mixture of two different types of vinegar for a more complex flavor. Just steer clear of balsamic vinegar, as its strong, dark, and sweet profile is not suitable for this particular pickling recipe.
- Granulated Sugar: Sugar serves a crucial role here, balancing the sharpness of the vinegar and contributing a delightful sweetness that mellows the onions. I recommend starting with one tablespoon and then adjusting to your personal preference. Some people enjoy a more tart pickle, while others prefer a noticeably sweeter one. This flexibility is precisely why homemade is best – you can tailor the sweetness to your exact liking! For a different flavor dimension or if you prefer natural sweeteners, feel free to substitute honey or maple syrup for the granulated sugar.
- Salt: A touch of salt is indispensable in most pickling recipes. It not only enhances the overall flavor but also helps to draw out moisture from the onions and contributes to their crispness. We typically use kosher salt for its pure flavor and larger crystals, but other varieties like fine sea salt will work just as well.
- Very Warm Water: The warm water serves two primary functions. Firstly, it dilutes the strong acidity of the vinegar, preventing the pickles from being overpoweringly tart and ensuring a more balanced flavor. Secondly, the warmth significantly aids in dissolving both the sugar and the salt quickly and thoroughly, ensuring an even distribution of flavor throughout the brine.
- Jar or Bowl: For practical storage and ease of access, a glass jar with a tight-fitting lid is my preferred container for pickled red onions. Its shape makes it simple to tuck into the fridge. However, a covered bowl will work perfectly fine if that’s what you have. There’s no need to rush out and buy new equipment; repurposed glass jars, such as those from jam, pickles, or sauces, are excellent sustainable options. Just ensure any recycled jar is impeccably clean and has a lid that seals well to maintain freshness.
The Effortless Process of Making Pickled Red Onions
Get ready for simplicity, friends! This recipe is astonishingly easy, requiring absolutely no cooking, no elaborate pans, and minimal cleanup – often just a single measuring cup to wash. It’s truly a beginner-friendly marvel.
Begin by slicing your red onions as thinly and uniformly as you can. For perfectly even, paper-thin slices, I highly recommend using a mandoline slicer. Not only does it produce consistently delicate slices, but it also speeds up the task considerably, making quick work of an otherwise tedious job. However, a word of caution: mandolines are incredibly sharp, so please exercise extreme care and always use the safety guard to protect your fingers. We want delicious pickled onions, not pickled fingertips in the jar!
Can you make pickled red onions without a mandoline?
Absolutely! A mandoline is a convenience, not a necessity. If you don’t own one, a very sharp chef’s knife, a stable cutting board, and a steady hand are all you need. Focus on slicing the onions as thinly as your knife skills allow, aiming for consistent thickness to ensure even pickling.
Here’s another point to consider: While thin slices are traditional, some people prefer their pickled onions to have a bit more bite and texture. Slicing the onions slightly thicker can result in a crisper final product. If you opt for thicker slices, simply allow them a little extra time to soak and soften in the brine before you begin enjoying them.
Enough about slicing! Once your onions are prepared, carefully stuff all the sliced onions into your chosen jar or jars. There’s no need for any special layering or arrangement here; simply pile them in. If a single jar proves too small to contain all the slices, feel free to divide them between two jars. For these photos, I selected these charming, smaller jars for aesthetic appeal, but in my everyday kitchen, I typically reach for a larger, more practical jar.
In a separate measuring cup, combine the apple cider vinegar, salt, granulated sugar, and very warm (but not boiling) water. Stir the mixture vigorously until both the sugar and the salt are completely dissolved. This ensures an even distribution of flavor throughout your pickling liquid.
Carefully pour the prepared pickling mixture over your sliced onions in the jar. Ensure that the liquid completely covers all the onion slices. This is crucial for proper pickling and flavor infusion.
There should be sufficient liquid to entirely submerge the onions. If you find there isn’t enough brine to cover them, you have a few options: you can remove a small portion of the onions, transfer them to a slightly smaller jar, or quickly prepare a little more pickling brine (maintaining the same ratios). If the liquid level is only slightly below the onions, simply add a small splash more warm water or apple cider vinegar to top it off and ensure full coverage.
Allow the jar of onions to sit, uncovered, on your kitchen counter for about an hour. This crucial step allows them to cool down naturally and fully absorb the vibrant, flavorful brine. At this stage, your pickled red onions are ready to be enjoyed! However, if you’re preparing them in advance, simply cover the jar tightly and transfer it to the refrigerator. They will keep beautifully in the fridge for a good two to three weeks, though I suspect they’ll be devoured long before then!
FAQs
FAQs
For quick pickles like these red onions, most types of vinegar are suitable, with the notable exceptions of balsamic vinegar and malt vinegar, which have flavor profiles that don’t typically complement pickling. White distilled vinegar is a very popular choice due to its clarity, which doesn’t alter the color of the vegetables, and its clean, tart flavor with good acidity. Other excellent options include cider vinegar (my preferred choice for its subtle sweetness), white wine vinegar, or rice vinegar. Feel free to experiment or even combine two types of vinegar to create your unique flavor blend.
For this particular quick pickle recipe, boiling the vinegar is completely unnecessary. The recipe specifically calls for “very warm water” rather than boiling, and this warmth is sufficient to effectively dissolve the sugar and salt, creating a perfectly balanced brine. Boiling the liquid and then pouring it over the onions would cause them to soften considerably, potentially leading to a less crispy texture. By using warm water, we achieve ideal dissolution while preserving the desirable crispness of the onion slices.
Realistically, your pickled red onions might not last long at all because they are so delicious, you’ll likely devour them quickly! However, for practical purposes, when stored correctly in an airtight jar in the refrigerator, they will keep beautifully for up to three weeks. To ensure freshness and safety, always trust your senses. If the onions begin to look mushy or cloudy, develop an off-color, or emit an unpleasant odor, it’s best to discard them and prepare a fresh batch. Before making a new batch, ensure your jar is thoroughly washed and rinsed, or run it through the dishwasher to sanitize it.
Absolutely! This versatile quick-pickling method can be applied to a wide variety of vegetables, transforming them into tangy, delightful condiments. Feel free to experiment with other favorites! You might enjoy my Pickled Radish Recipe, vibrant Pickled Asparagus, crisp Pickled Green Beans, or classic Refrigerator Dill Pickles. For an extra kick, try a batch of spicy Pickled Vegetables or savory Pickled Cauliflower. The possibilities for quick-pickling are nearly endless, offering a simple way to add zing to almost any vegetable.
Pickled red onions are generally considered a healthy addition to your diet. Onions themselves are rich in vitamins, minerals, and antioxidants. The pickling process, especially quick pickling like this recipe, preserves many of these nutrients. They are low in calories and can add a significant flavor boost to dishes without adding much fat or excessive calories. The vinegar in the brine can also offer some health benefits, such as aiding digestion. However, as with any food, moderation is key, especially if you are mindful of sodium or sugar intake, though the quantities in this recipe are quite balanced.
Personalize Your Pickled Red Onions
The beauty of homemade food lies in the ability to customize it to your exact preferences. This pickled red onion recipe is incredibly flexible, inviting you to experiment with a variety of exciting variations to truly make it your own.
- Onion Type & Cut: Don’t limit yourself to red onions! Experiment with yellow, white, or even sweet onions for a different base flavor. Adjust the thickness of your slices – thicker slices will remain crisper, offering more bite, while thinner slices will soften more quickly and absorb flavor faster. You can also vary the shape, slicing the onion into classic rings, elegant half-moons, or even roughly chopping it for a more rustic texture.
- Vinegar & Sweetener Substitutions: While apple cider vinegar is fantastic, explore other vinegars like white wine vinegar for a milder taste or rice vinegar for an Asian-inspired twist. Instead of granulated sugar, try maple syrup or honey for a distinct natural sweetness that imparts its own subtle notes.
- Adjusting Sweetness Levels: This recipe allows for complete control over the sweet-to-tart ratio. If you prefer a more intensely tangy pickle, reduce the amount of sugar. For those who enjoy a noticeably sweeter condiment, simply increase the sugar or alternative sweetener to your desired level.
- Spice it Up: For a delightful kick, infuse your pickled onions with heat. Add a pinch or two of red pepper flakes to the brine, or for a more potent spice, thinly slice a fresh jalapeño or serrano pepper and add it to the jar with the onions.
- Aromatic Additions: Sliced garlic cloves are a wonderful addition, lending a pungent, savory depth that pairs beautifully with the tangy onions. Feel free to include 2-3 cloves, thinly sliced, directly into the jar.
- Whole Spices & Herbs: Elevate the flavor profile further by incorporating whole spices into the brine. Try a few black peppercorns, a pinch of fennel seeds for anise notes, a touch of cumin seeds for warmth, or mustard seeds for a classic pickling flavor. A bay leaf can add a subtle herbal aroma, or for fresh, vibrant notes, tuck in a sprig of fresh dill, thyme, or rosemary.
- Batch Size: This recipe is easily scalable. If you’re hosting a large gathering or simply want to ensure a steady supply, feel free to double or even triple the recipe. Conversely, if you’re making a small batch for personal enjoyment, it can be halved without issue. Just remember to use enough clean jars to ensure all sliced onions are completely submerged in the flavorful vinegar solution.
With these simple modifications, it’s incredibly easy to make this recipe perfectly suited to your unique taste and culinary style!
Storage Tips
Storage Tips
As mentioned earlier, these delightfully tangy pickled red onions will maintain their excellent quality and flavor in the refrigerator for up to three weeks. Always ensure they are stored in a clean, airtight jar to maximize their shelf life and preserve their crispness.
Can you freeze pickled onions?
While I personally haven’t found the need to freeze pickled onions, primarily because they are so quick and easy to make fresh whenever the craving strikes, it is certainly an option if you find yourself with an abundance of onions to use up. If you decide to freeze them, I recommend slicing the raw onions as usual and then placing the sliced onions into freezer-safe bags or containers. There’s no need for blanching prior to freezing. They will keep well in the freezer for approximately three months. When you’re ready to make a batch of pickled onions, simply thaw the frozen slices and then proceed with the recipe by adding the prepared brine. Keep in mind that freezing and thawing may slightly alter their texture, potentially making them a little less crisp than freshly pickled onions, but their flavor will still be wonderful for cooking or as a softened condiment.
Even More Creative Ways to Enjoy Pickled Red Onions
I’ve already shared a multitude of ideas, but the versatility of pickled red onions is truly boundless. Here are even more fantastic suggestions to inspire your culinary adventures, demonstrating just how easily these tangy treasures can elevate everyday meals:
- Fish Tacos: The bright acidity of pickled onions perfectly cuts through the richness of fried or grilled fish, making them an indispensable topping for any fish taco creation. You’ll absolutely adore the combination!
- Vegan Tacos: Pair them with roasted carrots, mushrooms, and quinoa for a plant-based taco that bursts with fresh, tangy flavor.
- Instant Pot Pulled Pork: A spoonful of pickled onions adds a much-needed zing and crisp texture to tender, savory pulled pork sandwiches.
- Instant Pot Carnitas: The tartness provides a fantastic contrast to the rich, crispy carnitas, enhancing every bite.
- Sheet Pan Breakfast Tostadas: Brighten up your morning tostadas with a scattering of these tangy onions for an unexpected flavor pop.
- The Best Cauliflower Nachos: They add a vibrant, zesty counterpoint to cheesy, loaded cauliflower nachos, making them even more irresistible.
- Crispy Sweet Potato Tacos: The sweetness of the beer-marinated sweet potatoes finds its perfect match in the tangy crunch of pickled red onions.
- Grilled Pizza with Arugula Pesto: A surprising yet delicious topping that adds a sophisticated, tangy edge to your gourmet pizzas.
- California Breakfast Wrap: Incorporate them into your breakfast wraps for an extra layer of flavor and delightful crunch.
- BBQ Chicken Sweet Potato Nachos: The tangy onions balance the smoky sweetness of BBQ chicken and sweet potatoes on a bed of nachos.
How to Pickle Red Onions
Rachel Gurk
5
55
1
8 servings
Ingredients
- 1 red onion, thinly sliced (use a mandoline for best results, if available)
- 1/2 cup apple cider vinegar
- 1 tablespoon granulated sugar
- 1 1/2 teaspoons salt
- 1 cup hot water (ensure it’s warm, but not boiling)
Instructions
-
Slice the red onions as thinly as you possibly can. A mandoline works exceptionally well for achieving paper-thin, uniform slices, but a sharp chef’s knife and a steady hand are also perfectly adequate.
-
Carefully pack all the thinly sliced red onions into a clean glass jar of your choice. While a bowl can also work, a jar is generally more convenient for storage in the refrigerator.
-
In a separate measuring cup, combine the apple cider vinegar, salt, granulated sugar, and warm water. Stir the mixture thoroughly until both the sugar and salt have completely dissolved. Once dissolved, pour this pickling mixture directly over the sliced onions in the jar, ensuring that all the onions are fully immersed in the liquid. Allow them to set at room temperature for approximately one hour.
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After the initial hour of marinating, cover the jar with a tight-fitting lid and transfer it to the refrigerator. Your pickled red onions will be ready to enjoy and will keep well for up to three weeks.
Notes
- Feel free to use other types of onions, such as yellow or white, if red onions are not available or preferred.
- For a different flavor profile or natural sweetness, honey or maple syrup can be substituted for the granulated sugar. Adjust the quantity to achieve your desired level of sweetness or tartness.
- If apple cider vinegar is not on hand, plain white distilled vinegar, rice vinegar, or white wine vinegar make excellent substitutes. A combination of two different vinegars can also add complexity.
- This recipe is very easy to double or triple to produce a larger batch. When scaling up, ensure you have enough clean jars to accommodate the increased volume, and always make sure the sliced onions are completely submerged in the vinegar solution.
Video
Watch how easy it is to make these quick pickled red onions!
Nutrition
Carbohydrates: 3g,
Protein: 1g,
Fat: 1g,
Saturated Fat: 1g,
Polyunsaturated Fat: 1g,
Monounsaturated Fat: 1g,
Sodium: 437mg,
Potassium: 31mg,
Fiber: 1g,
Sugar: 2g,
Vitamin A: 1IU,
Vitamin C: 1mg,
Calcium: 4mg,
Iron: 1mg
Nutrition information is automatically calculated and should be used as an approximation.
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