3 cups fresh watermelon puree (about 8 cups cubed seedless watermelon)
2 serrano chilies, sliced
1 1/2 cups fresh lime juice
2 cups silver tequila
1 cup simple syrup (1 cup sugar dissolved in
1 cup hot water, then cooled)
1 tablespoon Cointreau
Combine all ingredients in a large pitcher and stir well. Add ice just before serving.
6 servings. Per serving: 240 calories; 0g fat; 25g carbs, 0mg sodium; 1g fiber; 1g protein