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A jar filled with tangy and sweet pickled red onion being served up with a fork.
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Pickled Red Onions

Pickled red onions are the tangy, crunchy topping that can instantly brighten up tacos, salads, sandwiches, and more. With just a few simple ingredients, you’ll have a batch ready in no time, perfect for adding a zesty twist to any meal!
Prep Time5 minutes
Cook Time0 minutes
Total Time5 minutes
Course: condiment
Cuisine: American
Servings: 8
Author: Serene

Ingredients

  • 1 medium red onion
  • ½ cup white vinegar
  • 2 tablespoons white sugar (depending on preference go up to 1/4 cup sugar)
  • 6 black peppercorns
  • water to fill the jar

Instructions

  • Using the food processor with the fine slicing blade, or a mandolin, slice the red onion finely. If needed you can use a knife, just ensure you are slicing as thin as possible. 
  • Add the onions to a jar (I typically use a 16 ounce Ball Jar). 
  • Pour the white vinegar over the top of the onions. 
  • Add the sugar and peppercorns. Then pour in water until the jar is filled. 
  • Tighten the lid, and then shake the jar to combine the ingredients. 
  • Place in the refrigerator and allow to sit for 1 hour before enjoying. These can be stored in the refrigerator for up to two weeks.

Notes

Onion Thickness: The thicker your slices of onion the longer they will need to sit for the vinegar to get all the way through the onion for flavoring. 
Storage: Store pickled onions in a sealed container in the refrigerator for up to 2 weeks. 
Canning: This is not a canning recipe. These do need to be stored in the refrigerator. Please follow a verified canning recipe if that is what you are looking for. 

Nutrition

Calories: 20kcal | Carbohydrates: 4g | Protein: 0.2g | Fat: 0.03g | Saturated Fat: 0.01g | Polyunsaturated Fat: 0.004g | Monounsaturated Fat: 0.001g | Sodium: 1mg | Potassium: 21mg | Fiber: 0.3g | Sugar: 4g | Vitamin A: 1IU | Vitamin C: 1mg | Calcium: 4mg | Iron: 0.04mg