In small saucepan, combine water and sugar, boil 5 minutes. Add mint leaves and boil 5 to 10 minutes longer, or until mixture becomes light green and has reduced to 1 1/2 cups liquid. Remove from heat. Cool to room temperature. Strain syrup. Refrigerate.

To make punch: In large punch bowl, combine grapefruit juice, 1 1/2 cups syrup and seltzer; add ice ring or ice cubes, grapefruit slices and mint leaves.

YIELD: 12 servings (about 8 cups)

For This Recipe We Recommend
Regent Ruby Red Grapefruit	Supreme White Grapefruit