Watermelon Vodka Slush

In a food processor puree the watermelon flesh. Pour the pureed watermelon into empty ice cube trays and freeze for at least 4 hours. Also freeze 4 martini glasses.

In a blender combine the frozen watermelon cubes simple syrup lemon juice vodka and melon liqueur; blend until smooth. Pour into 4 frozen martini glasses and garnish each with a lemon twist.