Quick Pickled Red Onions Recipe

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My quick Pickled Red Onions recipe is easy to make with four basic ingredients. A sweet and tangy condiment that’s delicious on sandwiches, salads, and burgers! Ready in 30 minutes.

Red onion slices in a glass jar.
Pickled red onions with white vinegar.

Pickled red onions have been a favorite in my kitchen for years. They are a delicious addition to so many salads, sandwiches, wraps, burgers, and more. They add a bright, tangy flavor with an irresistible, zesty crunch.

I first learned to make them from my Grandmother. She would routinely make them and keep them in her refrigerator to add to dishes throughout the week.

How to Make Quick Pickled Red Onions

Thinly sliced red onions and a chef's knife on a marble countertop.
Thinly sliced red onions.

Ingredients

You only have to have four basic ingredients, with one optional ingredient:

Red onions: thinly sliced using a sharp knife or a mandoline.

Vinegar: I love using apple cider vinegar for the naturally sweet, mellow flavor it adds to the recipe. Alternatively, you can use white vinegar for a more transparent color in the jar.

Water: I use equal amounts of vinegar and water for my recipe.

Salt: I use a fine sea salt in this recipe.

Optional ingredient: You can include sugar in your recipe if you prefer. It enhances the sweetness of the onions and yields a syrupy consistency to the liquid, which some enjoy.

Key Steps: How to Make Pickled Red Onions

  • Add the sliced onions to a Mason jar.
  • Whisk together the vinegar, warm water, salt, and sugar (if using).
  • Pour over the onions, top the jar with a lid, and refrigerate up to 2 weeks.

What to Serve

Here are a few of my favorite ways to serve my quick pickled red onions:

Pickled red onions in a glass jar.
Pickled red onions with apple cider vinegar.

Storage Tips

Refrigerate the pickles for up to 2 weeks.

Here’s my easy Quick Pickled Red Onions Recipe. I hope you love it as much as we do!

Quick Pickled Red Onions Recipe

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My quick pickled red onions recipe is easy to make with four basic ingredients and ready in 30 minutes. They add so much flavor to sandwiches, salads, and more!
Prep Time: 5 minutes
Chilling Time: 15 minutes

Equipment

  • Knife or mandoline
  • Mason jar (10-ounce)

Ingredients

  • 1 medium red onion, thinly sliced
  • 1 cup (255 g) vinegar, apple cider vinegar or white vinegar
  • 1 cup (236.59 g) water, warm
  • 1 tablespoon (18 g) fine sea salt
  • 1 tablespoon (12 g) cane sugar, optional

Instructions 

  • Add the thinly sliced red onions to the glass Mason jar.
  • Add the vinegar, water, salt, and sugar (optional) into a measuring cup. Stir to combine until the salt and sugar are disolved. Pour over the onion slices in the Mason jar. Affix the top securely to the jar and refrigerate.

Notes

The fridge time needed for the pickled red onions depends on the thickness of the onion slices, from 15 minutes to overnight.ย 
Storage Tips:
Refrigerate up to 2 weeks

Nutrition

Calories: 90kcal
Carbohydrates: 10g
Protein: 1g
Fat: 0.1g
Fiber: 2g

Nutrition information is automatically calculated, so should only be used as an approximation.

Enjoy!
Robyn xo

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About Robyn

Robyn Stone is a cookbook author, wife, mom, and passionate home cook. Her tested and trusted recipes give readers the confidence to cook recipes the whole family will love. Robyn has been featured on Food Network, People, Southern Living, and more.

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