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How to Make Pickled Red Onions

Pickled Red Onions may be the easiest and best condiment ever, with just sliced red onions, vinegar, and a little salt and sugar. These pickled red onions can enhance the most mundane of dishes, like sandwiches or a simple green salad.

Pickled red onions in an open jar sitting on a wooden board.

I am in love with these pickled red onions. They are so easy to make, they keep for weeks in the refrigerator, and they lend a subtle, tangy flavor to whatever you want to add them to. I’ve put them in salads, on sandwiches, love them on hamburgers, and even just add them as a little side note to roasted vegetables.

Thinly sliced red onions on a cutting board with a knife.

And pickled red onions are pretty! The vinegar takes on a red hue from the onions and the onions lighten and brighten to become a reddish-pink color.

My favorite new combination is to add pickled red onions instead of just sliced red onions to my BBQ Pork Pizza with Roasted Corn, Jalapeno, and Smoked Mozzarella.

How to Make Pickled Red Onions

You will love how easy this recipe is! All you need to do is slice up some red onions nice and thin. Then bring vinegar, sugar, and salt to a boil and pour over the onions.

A bowl of red onions with vinegar poured over them.

THAT IS IT! Seriously!

Once the onions come to room temperature, store them in the refrigerator where they will keep for 2-3 weeks—if they stick around that long. In my house, they’re gone in about a week!

A bowl of red onions after the vinegar has pickled them.

You can experiment with the vinegar. I usually use apple cider vinegar, but I’ve also used red wine vinegar, white wine vinegar, and sherry vinegar and all are good. Balsamic vinegar would work too. Basically, whatever you have on hand will be just fine.

You can also add various spices if you want to tweak the flavor profile a bit: peppercorns, whole allspice or cloves, star anise–any of these would add a slightly different taste to the onions.

Are you making this recipe? Tag #SouthernFoodandFun on Instagram. I LOVE to know when someone feeds their family with one of my recipes!

Pickled red onions in an open jar sitting on a wooden board.

Pickled Red Onions

Yield: 6 servings
Prep Time: 10 minutes
Cook Time: 5 minutes
Total Time: 15 minutes

Pickled Red Onions may be the easiest and best condiment ever, with just sliced red onions, vinegar, and a little salt and sugar.

Ingredients

  • 1 red onion, thinly sliced
  • 1 cup vinegar
  • 1/2 cup water
  • 2 tablespoons granulated sugar
  • 1 1/2 teaspoons kosher salt

Instructions

  1. Bring vinegar, water, sugar, and salt to a boil until sugar and salt dissolve. Remove from heat and pour over onions in a bowl.
  2. Allow onions to cool to room temperature, then place in a jar. Cover and chill. Keep refrigerated.
Nutrition Information:
Yield: 6 Serving Size: 6 servings
Amount Per Serving: Calories: 26Sodium: 582mgCarbohydrates: 5gSugar: 4g

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