Ingredients
1 small red onion, thinly sliced into rings
3/4 cup rice-wine vinegar
1/4 cup sugar
2 teaspoons coarse salt
2 whole cloves
Preparation
Put onion slices into a saucepan, and cover with water. Bring to a boil; drain, and transfer to a nonreactive bowl.
Bring vinegar, sugar, salt, and cloves to a boil in the saucepan. Pour over onion slices, and let cool. Refrigerate in an airtight container for at least 2 hours (or up to 1 month).