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Pickled Red Onions

Updated February 18, 2025 / By Holly Erickson & Natalie Mortimer

Quick-pickled in a bath of seasoned vinegar, our easy quick-pickled red onion recipe adds a punch of flavor to anything! Add them to salads, sandwiches, tacos, burgers—they make any meal even better.

Pickled red onions in a bowl, vibrant and tangy, perfect for adding flavor to tacos, sandwiches, or salads.

Making pickled red onions at home is so much easier than you’d imagine (there’s no cooking involved!), and once you try it, you’ll never want to NOT have a jar of them in your fridge. Quick pickles are just that—quick! They last and last in the fridge and they’re the ideal addition to so many meals. Pickled red onions are a must on top of tacos, sandwiches, salads, and beyond. With a lovely light pink-ish hue, these slightly crisp, powerfully tart quick-pickled red onions are the perfect way to dress up a cheese plate or charcuterie platter, too. 

distilled white vinegar, cloves, garlic, sugar, salt, bay leaf, cinnamon stick, red onion, & boiling water in separate bowls
boiling water being poured over sliced red onions in a mesh strainer

Red onions have their own beautiful sharpness, and distilled white vinegar—plus a little salt and sugar—alone would be enough to pickle them to make the most simple, basic quick-pickled red onions ever. We like to add a few seasonings to add some complexity to these irresistible red onion pickles, though, just to make them all that much more delicious. For more recipes that celebrate the hardest working allium of all, check out our Caramelized Onions, Roasted Onions, and Fried Shallots

a jar of brine for pickled onions made with white vinegar, cloves, garlic, sugar, salt, bay leaf and a cinnamon stick
hot sliced red onions added to a jar with brine made of white vinegar, cloves, garlic, sugar, salt, bay leaf & cinnamon stick

What You’ll Need:

  • Vinegar: For this classic pickled red onion recipe, we wanted to keep things really simple and let the pickling spices do the talking. That means that we’re calling for the absolute most straightforward vinegar; distilled white vinegar! It is as neutral as can be, while packing the most serious tangy vinegar punch of all! We like that it doesn’t impart any flavor of its own (other than tartness) and so it lets the flavor of the red onion come through.
  • Onions: You can scale this recipe up, but one red onion goes a long way when you pickle it!
  • Pickling spices: Whole cloves, fresh garlic, bay leaf, cinnamon sticks make for a warm, fragrant combination. 
a jar of pickled red onions in a bowl, vibrant and tangy, perfect for adding flavor to tacos, sandwiches, or salads.

How to Make Pickled Red Onions

Making pickled onions from scratch is easy to learn. And after a week or so of having pickled onions in the fridge at all times, well, you’ll find that you’re spoiled! You’ll be making them on the regular and adding them to everything because they’re just so good. 

  1. Make the brine: stir together the vinegar, cloves, garlic, sugar, salt, bay leaf, and cinnamon stick in a 1-quart glass jar with a lid until the sugar dissolves.
  2. Prep the onions: place the sliced red onions in a mesh strainer and slowly pour boiling water over the onions.
  3. Onions, meet brine: use tongs to move the hot onions to the brine. Gently press the onions down to fully submerge.
  4. Cool! Pop a lid on the jar and put it in the fridge for at least one hour before eating.
  5. Store in the refrigerator for up to 3 weeks! 
a jar of pickled red onions in a bowl, vibrant and tangy, perfect for adding flavor to tacos, sandwiches, or salads.
a bowl of pickled red onions in a bowl, vibrant and tangy, perfect for adding flavor to tacos, sandwiches, or salads.

How To Use Pickled Onions

We really do use these quick-pickled red onions on everything! Try them on: 

Pickled red onions in a bowl, vibrant and tangy, perfect for adding flavor to tacos, sandwiches, or salads.

You Pickled That!

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Pickled Red Onions Recipe

  • Serves:  12
  • Yields:  2 cups
  • Prep Time:  1 hr 10 min
  • Cook Time:  0 min

Ingredients

  • 2 cups distilled white vinegar
  • 4 whole cloves
  • 1 garlic clove, halved
  • 2 teaspoons sugar
  • 2 teaspoons kosher salt
  • 1 bay leaf
  • 1 cinnamon stick
  • 1 large red onion, halved and thinly sliced
  • 4 cups boiling water

Method

  1. In a 1-quart glass jar, stir together the vinegar, cloves, garlic, sugar, salt, bay leaf, and cinnamon stick until the sugar dissolves.

    a jar of brine for pickled onions made with white vinegar, cloves, garlic, sugar, salt, bay leaf and a cinnamon stick
  2. Place the onion slices in a mesh strainer set over the sink. Slowly pour the boiling water over the onions. Using tongs, immediately transfer the hot onions to the vinegar mixture. Gently press the onions down to fully submerge.

    hot sliced red onions added to a jar with brine made of white vinegar, cloves, garlic, sugar, salt, bay leaf & cinnamon stick
  3. Seal the jar and let the onions pickle, refrigerated, for at least 1 hour before using, preferably overnight. Store refrigerated for up to 3 weeks.

    Pickled red onions in a bowl, vibrant and tangy, perfect for adding flavor to tacos, sandwiches, or salads.

Nutrition Info

  • Per Serving
  • Amount
  • Calories 7
  • Protein 0 g
  • Carbohydrates 2 g
  • Total Fat 0 g
  • Dietary Fiber 0 g
  • Cholesterol 0 mg
  • Sodium 99 mg
  • Total Sugars 1 g

Pickled Red Onions

Questions & Reviews

Join the discussion below.

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  • Esther

    If I want to use 5 onions can I multiply everything by 5 or is there a better way?

    I would just make one batch of liquid and see how many onions you can fit into it. Then make a second batch of liquid and see how many onions you can fit etc. You might not need 5x the liquid. Hope that makes sense.

  • David

    How long does the brine keep in anticipation of future pickling? How long do the pickled onions keep (refrigerated)?

    You can store the pickled onions for up to 3 weeks in the fridge. We don't recommend making the brine until you are ready to pickle. Hope you enjoy David!

  • jan

    Would stevia work instead of sugar? Also could 1/2 the salt be used with similar results?

    We haven't tried either of these substitutions.

  • Anna

    I know you have another pickled veggies recipe, but I'm wondering if I could do the same thing with this recipe, but with carrots instead? Maybe when I'm done with the onions in the jar, or at the same time?!

    Hi Anna, sure! Should work fine with carrots. Let us know how it goes!

  • Jenn

    Love these! I make them on the regular and especially love them on burgers and salads.

    Thank you Jenn, this is so great to hear!