Quick Pickled Onions Recipe

5 from 4 votes

Learn how to make pickled red onions with simple ingredients and easy steps, and add tangy flavor to all your meals!

Prep Time5

Cook Time10

Rest time1

Total Time1 15

Course: condiment, Side Dish

Cuisine: American

Keyword: how to make pickled red onions, pickled red onions, pickled red onions recipe, quick pickled red onions

Servings: servings

Peel and thinly slice the red onion into rings or half-moons, depending on your preference.
1 medium red onion
In a small saucepan, combine the vinegar, water, sugar, and salt. Add any optional seasonings like garlic, peppercorns, or mustard seeds.
1/2 cup (120ml) apple cider vinegar (or white vinegar), 1 cup (240ml) water, 1 Tablespoon (12g) granulated sugar, 1 1/2 teaspoons (9g) kosher salt, Optional: 1 garlic clove, Optional: 1/2 teaspoon black peppercorns, Optional: 1/2 teaspoon mustard seeds, Optional: 1-2 sprigs of fresh herbs
Bring the mixture to a simmer over medium heat, stirring until the sugar and salt are dissolved.
Place the sliced onions in a heatproof jar or container. Pour the hot pickling liquid over the onions, making sure they are fully submerged.
Let the onions sit at room temperature for about 30 minutes. Once cooled, cover the jar and refrigerate. The onions will be ready to eat in about 1 hour, but they taste even better after sitting for a few hours or overnight.
Use the pickled onions as a topping for tacos, sandwiches, salads, or any dish that could use a tangy, crunchy kick.
Store the pickled onions in the refrigerator for up to 2 weeks.