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How to Make Pickled Red Onions

Pickled onions are a condiment that will enhance just about anything. You can very quickly and easily make pickled red onions for your refrigerator.  Then you will always have a crisp, colorful, and flavorful way to jazz up any meal.

Make some pickled onions this morning and they'll be ready to use on your sandwich at lunch or your vegetables for dinner.

Quick and Easy Refrigerator Pickled Red Onions

A jar of refrigerator pickled red onions.
These pickled red onions are so versatile you'll want to make them regularly.  They will add a delightful tart-yet sweet, crunchy texture to many dishes and the vibrant color will be a feast for your eyes.

The Reasons You'll Love Pickled Red Onions

This recipe is quick and easy to make.  You can make these pickled onions in about fifteen minutes.  You'll want to chill them for at least an hour before using but they are even better the next day.

Red onions have a beautiful, vibrant color when pickled.  These onions will enhance any dish.

Pickled red onions are crisp and delicious.  They will maintain their crisp texture for up to two weeks in your refrigerator, but they probably won't last that long.

There is no need to get out canning gear.  Just make a simple brine and pour it over your thinly sliced onions. Refrigerate and enjoy.

The Pickled Red Onions Ingredients

The ingredients to make these delicious pickled onions are simple. You may have them in your kitchen now.

Red onions are the best choice because they have great flavor and beautiful color when pickled.  Yes, you can substitute other onions. Feel free to experiment.

Apple cider vinegar is a mild vinegar.  It doesn't overwhelm the red onion. You can substitute white distilled vinegar if that's what you have on hand.

Whole black peppercorns add just a hint of peppery heat.

Watch the Pickled Red Onions Video

Frequently Asked Questions

How long do refrigerator pickled onions last?

Your pickled onions will be ready to eat in about an hour.  You'll notice the color change and they'll be bright pink with a tender texture. They will keep in the fridge for up to 2 weeks but are best when consumed within a week.

Should homemade pickled onions be refrigerated?

Yes. Let the pickled onions cool to room temperature (about 20 to 30 minutes)after adding the pickling mixture. Cover and refrigerate your pickled onions so they get crisp and colorful, for at least an hour. 

What are the best onions for pickling?

Any onions will work but shallots and red onions are best to use for pickling because of their vivid, purple-red color. They will produce the prettiest pickled onions.

How do I use pickled red onions?
Try them on just about anything.  Top burgers and sandwiches with pickled red onions.  Add the pickled onions to salads. They'll add flavor and color to green beans.  I love them with my scrambled eggs.

Other Pickled Condiments

Watch the Pickled Beets Video

The Pickled Red Onions Recipe

pickled onions, condiments
condiments, salad
Yield: 4, one pint
Author: Donna Urso
Easy Refrigerator Pickled Onions

Easy Refrigerator Pickled Onions

Prep time: 10 MinCook time: 5 MinTotal time: 15 Min
A small batch recipe for fast and easy pickled onions.



  1. Slice the red onion.
  2. Layer the onion in a pint jar. Pack the onion tightly. Add the peppercorns.
  3. Prepare the brine: In a pan over medium heat, mix the vinegar, water, salt, sugar, and mustard. Bring to a boil. Stir to dissolve the sugar. Remove from the heat and cool to warm.
  4. Pour the brine over the onions. Cover and refrigerate.
  5. Consume within 2 weeks.


Double the recipe for 2 pints.

Nutrition Facts



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Nutritional information is approximate.


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