1 cup apple, grape or other fruit juice
1 cup vinegar
1/3 cup granulated sugar or honey, or more to taste

Combine all the ingredients in a medium saucepan. Stir to dissolve sugar.

Place pan over medium heat and bring to a boil. Make sure area is well-ventilated. Reduce heat to low and simmer for 20 to 30 minutes, or until mixture is reduced by about two-thirds.

Taste for sweetness and add more sugar or honey if desired. Cool to room temperature. To use, drizzle over bland melon, cover and refrigerate for at least 2 hours.

Makes about 3/4 cup (enough for 1 large melon or 2 smaller melons).

— Recipe adapted from "Mollie Katzen's Sunlight Cafe," by Mollie Katzen (Hyperion, 2002).