From Food and Wine, July 2009.
Makes 8 delicious cocktails:
1/4 cup water
1/4 cup sugar
8 cups diced seedless watermelon (1 lb)
1/4 cup fresh lime juice
1 3/4 cup fresh blueberries
3/4 cup packed fresh mint
1 1/4 cup silver tequila
In a small sauce pan, bring sugar and water to a moderate heat, allow sugar to dissolve, allow to cool.
In a blender, puree watermelon until smooth, pass juice through a fine mesh sieve. Discard pulp.
In a large pitcher, combine sugar, syrup with lime juice, blueberries and mint leaves. Using a wooden spoon, muddle blueberries and mint.
Add watermelon juice and tequila, chill for about 2 hours.
Serve over ice and garnish with mint and lime wedge.