Pickled Red Onions

Read 13 Reviews
Prep 10 minutes
Cook 2 minutes
Servings 8 (1/4 cup per serving, or 2 cups total)

Next time your burgers, salads, puled pork, and favorite Mexican dishes seem to be missing something and needs an oomph of flavor and color, grab some pickled red onions. Your dish will perk right up! They’re sweet, tangy, beautiful, and only take minutes to make.

red pickled onions in glass jar

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5 STAR REVIEW

If you’ve never made pickled red onions before, stop what you’re doing and get after it. Pickling raw red onions transforms them from sharp and bitter to something zesty and sweet. Their slightly crisp texture and vibrant jewel-toned appearance makes them a simply irresistible condiment!

You’ll love having a jar of these in your fridge to grab at any time for tacos, burgers, salads, and more. They add a sweet, tangy flavor and pop of color to so many dishes, much like these underrated pickled radishes.

Helpful Tips & Possible Variations

  • Red Onion. Look for a firm red onion, without blemishes or soft spots. This recipe can also be made with white or yellow onions, but you won’t get that beautiful bright-pink color.
  • Vinegar. Apple cider vinegar is my preference for pickled onions, but rice vinegar or white wine vinegar can also be used. Avoid distilled white vinegar and balsamic vinegar for this recipe.
  • Sugar. Granulated sugar provides a necessary balance to the acidity of vinegar. Without it, the brine will be way too harsh.
  • Change the seasonings. My recipe includes garlic, peppercorns, and a bay leaf, but you could put an Italian spin on it by using herbs like oregano and rosemary. Fresh ginger and star anise would accompany Asian dishes well. A slice of jalapeño or a pinch of red pepper flakes would be great additions if you wanted something spicier. Play with it!
  • Make a bigger batch. The recipe written below makes about 2 cups. If you need a larger quantity for a party or potluck, simply double (or triple) the ingredients and store in a bigger jar. (Storage info below.)
5 from 13

Pickled Red Onions

Prep: 10 minutes
Cook: 2 minutes
Marinate: 2 hours
Total: 2 hours 12 minutes
Servings: 8 (1/4 cup per serving, or 2 cups total)
Take your burgers, salads, and favorite Mexican dishes up a notch by adding some pickled red onions. They're sweet, tangy, beautiful, and only take minutes to make!
Step-by-step photos can be seen below the recipe card.

Ingredients 

  • 1 medium red onion
  • 1 clove garlic, peeled and smashed
  • 1/2 teaspoon whole mixed peppercorns
  • 1 dried bay leaf
  • 1 cup apple cider vinegar
  • 1 cup water
  • 1/4 cup granulated sugar
  • 1 teaspoon coarse salt

Instructions 

  • Slice a medium red onion to 1/8-inch thickness (ideally with a mandolin for uniformity.)
  • Stuff the sliced onions into a 20 ounce mason jar. Place the smashed garlic clove and whole rainbow peppercorns in the jar and slide a dried bay leaf in between the onions.
  • In a small saucepan, combine the apple cider vinegar, water, sugar, and coarse salt. Bring mixture to a boil and whisk until sugar is dissolved, about 30-60 seconds.
  • Pour hot mixture over the onions, making sure they're submerged in the liquid.
  • Loosely fasten with the lid and set aside to cool to room temperature, then tighten the seal and transfer to the refrigerator overnight.
  • Enjoy on salads, tacos, pulled pork, a burger, hard boiled eggs, or just for snacking!

Video

Notes

Store in the fridge in a sealed glass or ceramic container, not metal or plastic. They will keep up to 2 weeks.

Nutrition

Calories: 37kcal | Carbohydrates: 8g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 294mg | Potassium: 47mg | Fiber: 1g | Sugar: 7g | Vitamin A: 3IU | Vitamin C: 1mg | Calcium: 8mg | Iron: 1mg

Nutritional information given is an automatic calculation and can vary based on the exact products you use and any changes you make to the recipe. If these numbers are very important to you, I would recommend calculating them yourself.

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How To Make Pickled Red Onions Step By Step

sliced red onion on cutting board with mandolin

Slice a medium red onion to 1/8-inch thickness (ideally with a mandolin for uniformity.)

overhead sliced red onion on jar and half red onion on cutting board

Stuff the sliced onions into a 20 ounce mason jar. Place 1 smashed garlic clove and 1/2 teaspoon whole rainbow peppercorns in the jar and slide a dried bay leaf in between the onions.


brine in pot and sliced red onions in jar

In a small saucepan, combine 1 cup apple cider vinegar, 1 cup water, 1/4 cup sugar, and 1 teaspoon coarse salt. Bring mixture to a boil and whisk until sugar is dissolved, about 30-60 seconds.

overhead Pickled Red Onions in glass jar and serving dish

Pour hot mixture over the onions, making sure they’re submerged in the liquid. Loosely fasten with the lid and set aside to cool to room temperature, then tighten the seal and transfer to the refrigerator overnight.


front view of Pickled Red Onions in glass jar

Enjoy on salads, tacos, pulled pork, a burger, hard boiled eggs, or just for snacking!

pickled red onions in small serving bowl

What to Do with Pickled Red Onions

Oh gosh, so many delicious ways to use pickled onions. They’re such a great condiment to liven up just about any dish. Here are some ideas:

Proper Storage

Store these pickled onions in a sealed glass or ceramic container, not metal or plastic, in the refrigerator. They will keep up to 2 weeks. The longer they’re stored, the onions will eventually lose the two-tone look and be all pink.

More Pickle Recipes:

I hope you love this delicious and easy recipe – be sure to give it a review below! Also don’t forget to follow Belly Full on TikTokInstagramFacebook, Pinterest, and YouTube!

pickled red onion rings dangling from fork

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About Amy Flanigan

Well, hey there! Amy here, founder and COO at BellyFull. If you’re looking for tried and true, fuss-free, budget-friendly, delicious, every day recipes, you’ve come to the right place.

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Carol Godin
April 8, 2026 7:56 pm

I made these pickled onions two days ago. Once they were refrigerated and cold, I added another 1/4 cup of sugar. I preferred them this way, although my son would have loved them just the way they were! I’m old, so a little too vinegary for me but great with the extra sugar added! It just smoothed them out a bit for less adventurous people like me, lol. I love your videos and have too many of your recipes to ever have time to make!

Norma
April 2, 2026 7:23 am

We enjoyed the pickled red onions very much. I used apple cider vinegar for the brine. Also used my mandolin for slicing. These red onions are a welcomed condiment to any meal. 🩷

Chris Fossett
February 17, 2026 6:28 pm

I couldn’t wait to try and I wasn’t disappointed! Yum!

Michelle Emeneger
January 28, 2026 6:41 pm

These are so delicious and easy to make! I didn’t have all the exact ingredients, but I used what I had. Still soooo good!

Eileen Musgrove
September 16, 2025 1:41 pm

I made these on Sunday and just tried them now and OMG these are the better than the ones I buy at the farmers market and a fraction of the cost PLUS I know exactly when it was made. I am going to add some jalapeños next time. I can’t wait to try pickling other things like green beans. Thanks for this recipe!

Jessica
June 1, 2025 10:34 am

Can you use table
Salt if you don’t have coarse salt

Gloria A.
May 29, 2025 6:21 pm

Thank you Amy!

Tiffany D.
March 30, 2025 5:54 pm

Oh my goodness, these things are soOoOo good! My first time making them, but most certainly not my last!

Cindy
March 21, 2025 9:23 am

Fantastic! I added in a couple sliced of jalapeno.

Kim C.
February 20, 2023 5:31 pm

I love Panera’s green goddess salad. It has pickled onions on it. I wanted to make my own at home and needed a recipe for pickled onions. Yours is perfection! Now I want to eat them on everything. So easy to make with just a few ingredients.

Pam B
January 29, 2023 1:01 pm

I heard so much about the red onions. Had to try. So glad I did.

Janet
June 22, 2021 11:31 am

Made these over the weekend to put on top of burgers and they were awesome! We snacked on them, too. Will make again – thank you!

Donna
June 12, 2021 7:16 pm

I love this recipe & they are so easy to make. They are really good on sandwiches.

Ashlee
May 15, 2021 8:56 pm

Made these today and they are AMAZING!!!!
Definitely going to be keeping these stocked in my fridge!!