Easy Pickled Red Onions

Author: Sarah Cobacho

Published: March 1, 2022

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Sarah Cobacho of plantbaes with a Jar of Pickled Red Onions

Did you know how easy it is to make pickled onions? Iโ€™m currently going through a phase where Iโ€™m a little obsessed with them. They are so delicious and easy to make, and I love the bright pink color. They elevate almost every dish and are an absolute must in a sandwich or as an avocado toast topping. I make sure to always have some in my fridge!

Sarah Cobacho of plantbaes with a Jar of Pickled Red Onions

Easy Pickled Red Onions

5 from 6 votes
These Easy Pickled Red Onions are quick to make, requiring just 10 minutes. They’re tangy, sweet, and have a vibrant pink color.
Sarah Cobacho (plantbaes.com)
Prep Time3 minutes
Cook Time5 minutes
Resting Time 3 hours
Total Time3 hours 8 minutes


Servings 20 servings


  • 1 cup water
  • 1 cup white vinegar
  • 2 tbsp sugar ((or swap for sweetener of choice))
  • ยฝ tbsp sea salt flakes
  • 2 large red onions
  • 1 tsp peppercorn ((optional))


  • Add water, white vinegar, sugar, and salt to a small saucepan. Heat the mixture until the sugar and salt have completely dissolved.
  • Allow the mixture to cool down slightly.
  • Peel and thinly slice the red onions, place them in a jar, and pour the liquid over them, ensuring they are fully covered. Add the peppercorn if using. Leave on the counter until cool down, then transfer to the fridge.
  • Store the jar in the refrigerator for up to 2 weeks. The onions will be ready to enjoy after 3 hour, but for best results, let them sit overnight.

Per Serving

Calories 7kcalCarbohydrates 2gSodium 30mgVitamin C 1mgCalcium 4mgIron 5mg
COURSE Condiment
CUISINE International
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    1. You could, it will be a little less sweet, otherwise monkfruit is a great alternative ๐Ÿ™‚

  1. Super and erasy and delicious. This is now a staple of mine, always ready to add to salads and sandwiches.

  2. This recipe is so easy to make, thank you, I love it! Quick question, when you finish all the onions of the jar, would you recommend to empty the mix of water, white vinegar etc or going for a second round of onions is fine in term of bacteria. Thanks!5 stars

    1. I’m very happy to. hear you like it ๐Ÿ™‚ I usually discard it (I keep it for about 10 days on average)

5 from 6 votes (4 ratings without comment)

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