Learn how to make tangy and flavorful pickled red onions with this easy recipe. These versatile pickled onions add a burst of tangy sweetness to any dish, from sandwiches and tacos to salads and burgers. Made with simple ingredients like red onions, vinegar, sugar, and spices, this recipe takes only a few minutes to prepare and requires no special equipment. Whip up a jar of these pickled red onions to enjoy their bright and zesty taste all year round.
Ingredients
- 2 large red onions, thinly sliced
- 1 cup apple cider vinegar
- 1/4 cup white sugar
- 1 teaspoon salt
- 1/2 teaspoon black peppercorns
- 1/2 teaspoon mustard seeds
- 1/4 teaspoon crushed red pepper flakes
Directions
- In a small saucepan, combine the apple cider vinegar, sugar, salt, black peppercorns, mustard seeds, and crushed red pepper flakes.
- Bring the mixture to a simmer over medium heat, stirring occasionally until the sugar has dissolved.
- Place the thinly sliced red onions in a heatproof jar or container.
- Pour the hot vinegar mixture over the onions, making sure they are completely submerged.
- Cover the jar tightly and let it cool to room temperature.
- Once cooled, refrigerate the pickled onions for at least 1 hour before serving.
- The pickled onions can be stored in the refrigerator for up to 2 weeks.