Makes 1½ cups
Active Time: 10 minutes
Total Time: 24 hours
Pickled red onion rings or slices are one of those simple things that make a big difference if you have them on hand. Terrific mixed into a mayonnaise or on their own for topping a sandwich or salad.
1 medium red onion
Thyme leaves, for serving, optional
⅔ cup apple cider vinegar
¼ cup plus 2 tablespoons granulated sugar
¼ cup plus 1 tablespoon water
½ teaspoon fine sea salt
½ teaspoon whole black peppercorns
2 bay leaves
Thinly slice the onion into rings or lengthwise into slices, or cut into ¼-inch dice depending on how you intend to serve them. Put them in a heatproof storage container.
Combine all of the pickling liquid ingredients in a saucepan and bring to a boil. Pour over the onion. Let cool and then refrigerate for at least 12 hours and up to 1 week.
Serve with the thyme leaves, if you like.