Watermelon Lemonade

Ingredients:
7 cups 2-inch pieces peeled seeded watermelon (from about 4 pounds)
1 cup simple syrup
1 cup fresh lemon juice
3 tablespoons grenadine
1 cup gin
3 cups ice cubes
Optional garnish: lemon twists or watermelon wedges

Directions:
1. Purée watermelon pieces in a food processor. 
Strain watermelon purée into large pitcher, pressing on solids in strainer to extract as much juice as possible. Discard any solids in strainer. 
2. Add simple syrup, lemon juice, and grenadine to pitcher; stir to blend. Stir in gin.
3. Stir 3 cups of ice cubes into watermelon lemonade. 
Pour into tall glasses. Garnish with lemon twists or watermelon wedges, if desired. 

Serves 6.