Pickled onions are one of my absolute favorite pantry staples to have on hand! They’re tangy, slightly sweet, and incredibly versatile. Whether you’re topping tacos, adding brightness to a chickpea salad, or serving them alongside charcuterie, these homemade pickled onions will become your go-to condiment.
I love making a big batch of these beauties on Sunday and keeping them in my fridge all week long. The best part? You only need a handful of ingredients and about 10 minutes of hands-on time. No canning required! These quick pickled onions are ready to eat in just a few hours, though they taste even better after a day or two as the flavors really meld together.
What I absolutely adore about this recipe is how customizable it is. You can adjust the spice level, add fresh herbs like cilantro or dill, or even throw in some red pepper flakes if you like a little kick. I’ve served these alongside everything from bacon carbonara to simple grilled chicken, and they’re always a hit.
The beauty of quick pickled onions is that they’re not intimidating at all. You don’t need any special equipment or canning knowledge. Just slice your onions, make a simple vinegar brine, and let time do the work for you. The result is restaurant-quality pickled onions that taste infinitely better than anything you can buy at the store, and they cost just pennies to make.
I especially love using these on tacos, nachos, or as a topping for creamy pasta dishes. The acidity cuts through rich flavors beautifully. They’re also wonderful on grain bowls, salads, or even as a garnish for cocktails. Once you start making these, you’ll find yourself reaching for them constantly.
For an even fancier presentation, try layering them with other pickled vegetables for a stunning charcuterie board. Or make a jar with pickled red onions for an extra pop of color and visual appeal.
The key to perfect pickled onions is using good quality vinegar and not over-packing your jar. You want the brine to fully coat each slice. I prefer a mix of white vinegar and apple cider vinegar, but you can use whichever you prefer. Some people swear by rice vinegar for a milder flavor, while others love the boldness of red wine vinegar.
Storage is super simple too. These keep in the refrigerator for up to two weeks in an airtight container or jar. I actually find they taste better after a few days as the flavors continue to develop and intensify. They’re perfect for meal prep, entertaining, or just having on hand for those moments when you need a quick flavor boost.
I hope you’ll give this simple pickled onion recipe a try! It’s one of those recipes that seems almost too easy to be true, but I promise you’ll be amazed at how delicious they turn out. Let me know how you use them in the comments below!
Ingredients
- 2 large yellow or white onions, thinly sliced
- 1 cup white vinegar
- ½ cup apple cider vinegar
- 1 cup water
- 2 tablespoons sugar
- 1 tablespoon kosher salt
- 3 whole cloves garlic, peeled
- 1 teaspoon black peppercorns
- 1 bay leaf
- Optional: ½ teaspoon red pepper flakes, 1 teaspoon mustard seeds, or fresh herbs like cilantro or dill
Instructions
- Start by preparing your onions. Slice them thinly—I use a sharp knife or my mandoline slicer to get even, uniform slices about ¼ inch thick. Place the sliced onions in a large, clean glass jar or container.
- In a medium saucepan, combine the white vinegar, apple cider vinegar, water, sugar, and kosher salt. Stir well to combine, making sure the salt and sugar dissolve completely.
- Heat the vinegar mixture over medium heat just until it comes to a gentle simmer. You don’t need to bring it to a rolling boil—just warm it enough that the sugar and salt fully dissolve, about 3-4 minutes.
- While the brine is heating, add the garlic cloves, black peppercorns, and bay leaf to the jar with your sliced onions. If using optional ingredients like red pepper flakes or mustard seeds, add them now as well.
- Carefully pour the hot vinegar brine over the onions, making sure they’re completely covered. You may need to use a wooden spoon or clean hands to press them down slightly so they stay submerged in the liquid.
- Allow the pickled onions to cool to room temperature, about 30 minutes to 1 hour. Once cooled, you can cover the jar and refrigerate immediately.
- For best flavor, wait at least 2-4 hours before eating, though they’re technically ready in about 30 minutes. The longer they sit, the more flavorful they become, so overnight is ideal.
- Store your pickled onions in an airtight container in the refrigerator for up to two weeks. They’ll stay fresh and delicious throughout that time, and the flavor will continue to develop.
Pro Tips
- The key to perfectly pickled onions is slicing them uniformly so they pickle evenly. I recommend using a mandoline slicer or a sharp knife for consistent thickness.
- You can absolutely customize the vinegar ratio based on your taste preferences. Prefer a milder flavor? Use more water and less vinegar. Want extra tang? Add more vinegar and reduce the water.
- Sugar level is totally adjustable too. I use 2 tablespoons for a balanced sweet-tart flavor, but feel free to reduce it to 1 tablespoon if you prefer them less sweet or increase to 3 tablespoons if you like them sweeter.
- Fresh herbs like dill, cilantro, thyme, or rosemary make wonderful additions. Add them directly to the jar before pouring the brine.
- For a spicier version, add red pepper flakes, jalapeño slices, or habanero peppers. Start with ½ teaspoon of flakes and adjust to your heat preference.
- These pickled onions are perfect on tacos, nachos, grain bowls, salads, burgers, pulled pork sandwiches, or charcuterie boards. They also pair beautifully with Indian curries and Mexican dishes.
- The brine can be reused once if you have extra vinegar mixture, though the flavor will be less intense the second time around.
- While these are “quick pickled” and don’t require canning, if you want to preserve them longer, you can use a water bath canning method. Consult a reliable canning guide for proper safety procedures.
- Make sure to use clean, sterilized jars to prevent contamination and ensure maximum shelf life.
- If your onions seem tough after pickling, try slicing them thinner next time. Thinner slices pickle faster and have a more tender texture.
- These make an excellent homemade gift! Pack them in a pretty jar with a handwritten label and ribbon for a thoughtful present.
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