Easy Pickled Red Onions

The ultimate tangy dress up of any taco, avocado toast or salad.

One of the best ways to add flavor and color to your dish is this pickled red onion topping. It’s prepared in 5 minutes with a marinate time of at least two hours, so prepare ahead. I prefer to leave mine in the vinegar for at least 24 hours to transfer the flavor into the onion fully and have it soften to my liking.

I like my pickled red onions kind of on the sweet and tangy side so I tend to add a heaping amount of the sugar listed. You can also add some peppercorns to this recipe.

pickled red onions in vinegar

Easy Pickled Red Onions

5 from 5 votes
Servings: 10
Prep Time: 5 minutes
Cook Time: 5 minutes
Total Time: 10 minutes


  • 1 medium red onion, sliced thin
  • 1 cup white wine vinegar
  • 2.5 tbs sugar
  • 1 tbs salt
  • 1 tsp whole peppercorns


  • Add your vinegar, sugar and salt to a small pot and bring to A NEAR boil.
  • Place your separated, sliced onions in a medium sealable and airtight container. Pour the mixture over the onions. Allow to come to room temperature – about 1 hour.
  • Seal and place in the fridge for at least an hour. I prefer to wait over night for best results.  Keeps for 3 weeks refrigerated. 


Add more sugar if you prefer them sweeter.


Calories: 21kcal | Carbohydrates: 4g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Sodium: 700mg | Potassium: 26mg | Fiber: 1g | Sugar: 3g | Vitamin A: 1IU | Vitamin C: 1mg | Calcium: 4mg | Iron: 1mg
Author: Stella

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