Pickled Red Onions – Easy, Quick, 5 minute Recipe! | with video

Learning how to make pickled red onions is SO easy – it only takes five minutes and you probably have all the ingredients! You’ll love having a jar of these in your fridge for tacos, avocado toast, and more!

Image of Pickled Red Onions in jar with fork next to it

If you follow me on Instagram, you probably already know from my stories that I’m obsessed with these. OBSESSED. As in three meals a day obsessed.

PS: If you don’t follow me on Instagram, consider hopping over and checking it out! You’ll see some behind-the-scenes stuff on my stories!

The first time I made pickled red onions was for my daughter’s birthday party right after we moved into our new house (seriously, two weeks after). We did a taco bar with all the fixings because I seriously have no boundaries. I made corn casserole, homemade refried beans, cilantro lime rice, from-scratch margaritas, and more. One of the things I decided to make on a whim were these onions. Pickled onions are fabulous with Mexican food! I was so surprised to see them disappear SO quickly! Faster than the cheese, you guys! I can’t say I blame people, I love these pickled red onions on almost any Mexican dish and tacos are no exception.

Now, when you open my fridge, you’ll often see a jar of these. Once you learn how to make pickled red onions, you won’t stop making them either. They’re on my agenda to make today, actually — they’re so easy! One of my favorite ways to eat them is on top of avocado toast. It really livens the avocado toast up and the tangy pickled red onions are the perfect contrast to the rich, creamy avocado. I also love them on tacos, of course, as well as on grilled chicken, or just about anything else I can think of.

Learning how to pickle red onions is SO easy - it only takes five minutes! You'll love having a jar in your fridge for tacos, avocado toast, and more! Get the EASY method on RachelCooks.com!

How to Make Pickled Red Onions

It’s so easy, folks!

  1. Slice the red onions as thin as you can! I use a mandoline for this (this is the mandoline I have). Not only does it get them super thin, it also gets the job done insanely quickly. Fast is my friend.
  2. Stuff all the red onions in the jar of your choice. A bowl will work too but I like a jar for storing them in the fridge.
  3. In a measuring cup, stir apple cider vinegar, salt, sugar, and warm water to dissolve the sugar and salt and dilute things a bit. Pour the pickling mixture over your sliced onions and let them set for an hour.
  4. After an hour, I cover them and stick them in the fridge. They’ll keep in the fridge for a couple weeks!

Notes about vinegar:

  • My preference is always apple cider vinegar. I typically have it on hand and I like the subtle sweetness it adds.
  • You could also use a white wine vinegar or another light tasting vinegar. I wouldn’t recommend balsamic for these.
  • If you’re in a pinch, plain distilled vinegar will work.

FAQ: Can you make pickled red onions without a mandoline?

Absolutely! Slice them as thin as you can to get them to pickle quickly but if you don’t have a mandoline or want a slightly thicker slice, a good sharp knife and a steady hand will work just fine!

 

Learning how to pickle red onions is SO easy - it only takes five minutes! You'll love having a jar in your fridge for tacos, avocado toast, and more! Get the EASY method on RachelCooks.com!

PS: I got my jar out of Target’s dollar bin (I think) but these would work too.

How to Pickle Red Onions

Learning how to make pickled red onions is SO easy – it only takes five minutes and you probably have all the ingredients! You’ll love having a jar of these in your fridge for tacos, avocado toast, and more!

5
5 / 5 (3 Reviews)
Did you make this recipe?   Leave a review »

Ingredients:

  • 1 red onion, thinly sliced (use a mandoline if you have one)
  • 1/2 cups apple cider vinegar
  • 1 tablespoon granulated sugar
  • 1 1/2 teaspoons salt
  • 1 cup hot or warm water

 

 

Directions:

  1. Slice the red onions as thin as you can. I use a mandoline.
  2. Stuff all the red onions in the jar of your choice. A bowl will work too.
  3. In a measuring cup, combine apple cider vinegar, salt, sugar, and warm water. Stir to dissolve the sugar and salt. Pour this pickling mixture over your sliced onions and let them set for an hour. After an hour, cover and store in the fridge for up to three weeks.

Nutrition Information

Yield: 8 servings, Serving Size: 1/8 of recipe

  • Amount Per Serving:
  • Calories: 10 Calories
  • Sodium: 437mg
  • Carbohydrates: 3g
  • Sugar: 2g
Actual nutrition may vary depending on how recipe is prepared.

adapted from Bon Appetit

All images and text ©Rachel Cooks.

Verdict: Hey, did I mention I’m obsessed?
Husband’s take: Ben steers clear of raw onions so he hasn’t tried these, despite my urgings and ravings.
Changes I would make: Nada.
Difficulty: So stinking easy.

 

Learning how to pickle red onions is SO easy - it only takes five minutes! You'll love having a jar in your fridge for tacos, avocado toast, and more! Get the EASY method on RachelCooks.com!
When you make a recipe from my site tag it with #RachelCooks!
I love to see what you're creating!

11 comments

  1. sounds delicious and easy

  2. I love pickled onions so much. They add a tangy and almost sour taste that you can’t really get from many other condiments. I love how quick and easy this recipe looks. Can’t wait to try it! Thank you for sharing.

    Rating: 5
  3. I can’t wait to make this recipe. Which one is better, Hot water or warm water?

    Rating: 5
    • Warm to hot out of the tap (you don’t have to heat it). It just needs to be warm enough to help dissolve the sugar and salt so you’re not stirring forever. :)

  4. Yes!! I love pickled onions! Can’t wait to do this!!!

  5. Can I reuse the vinegar mixture for the next batch?

    Rating: 5
    • I have never done that, it always appears a little cloudy by the time I’m done using the onions so I prefer to start fresh since vinegar is fairly inexpensive. Let me know if you try it, though!

  6. Hi! I had pickled red onions for the first time last night at a Mexican restaurant and I was hooked immediately! I’m going to try your recipe but the ones I had were a little on the sweet side and I liked that. Can you taste the sweetness in your version or should I increase the sugar a little? Thanks!

    • Hi Denise,
      I haven’t tried these with additional sugar, but my guess is that it would achieve that taste you’re looking for! As the recipe is written, I wouldn’t say they taste sweet, and I’m fairly sensitive to sweet things. Let me know if you try it!

Leave a Reply

Your email address will not be published. Required fields are marked *