Ingredients:

  • 2 medium red onions (approximately 300g total), thinly sliced
  • 1 cup (240 ml) white wine vinegar
  • 1 cup (240 ml) water
  • 1/2 cup (100g) granulated sugar
  • 1 tablespoon kosher salt
  • 1 teaspoon black peppercorns, crushed
  • 2 bay leaves
  • 1/2 teaspoon red pepper flakes (optional)

Instructions:

  1. Thinly slice the red onions.
  2. In a medium saucepan, combine the white wine vinegar, water, sugar, salt, peppercorns, bay leaves, and red pepper flakes (if using).
  3. Bring the brine to a simmer over medium heat, stirring until the sugar and salt are dissolved.
  4. Pack the sliced onions into sterilized jar(s). Carefully pour the hot brine over the onions, ensuring they are fully submerged.
  5. Let the jar(s) cool to room temperature before sealing. Refrigerate for at least 2 hours, preferably overnight.