- 1 red onion, sliced into 1-inch matchstick strips
- 1 cup red wine vinegar
- 3/4 cup water
- 1 tablespoon kosher salt
- 1/2 teaspoon black peppercorns, cracked
- 3 juniper berries
- Place sliced onion strips into a heat-safe bowl and set aside. Mix the vinegar, water, salt, pepper, and juniper berries in a small pot and bring to a boil. Once boiling, pour hot liquid over the sliced onions. Cover the mixture and allow to marinate at room temperature for about one hour.
- The pickled onions will stay fresh for about one month in the refrigerator and make an excellent topping for tacos or sandwiches.