1 Oso Sweet Onion, very thinly sliced and separated into rings
1/3 cup distilled white vinegar
1 1/2 tablespoons olive oil
1/2 teaspoon hot red pepper flakes
1/4 teaspoon salt
1 tablespoon chopped fresh cilantro

Place Oso Sweet Onion in a heatproof bowl. In a small saucepan, combine vinegar, oil, pepper flakes, and salt. Heat just until mixture reaches a boil. Immediately pour over onions, tossing to coat. When cool, stir in cilantro. Use at once, or refrigerate, covered, up to 3 days.

Serving suggestion:

Super Sloppy Josés