What You Need
1/2 cup lime juice
1 tablespoon sugar
1/2 cup tequila
2 tablespoons Orange Liqueur
4 cups red watermelon cubed, frozen
1/4 cup coarse salt
Remove rind from whole watermelon and cut into 1-inch cubes. Set on cooking sheet single layer and freeze until solid (about 1 hour). In blender, combine lime juice, sugar, tequila and orange liqueur. Add watermelon chunks a few at a time, blending into a thick, smooth slush. If desired, pour salt onto a small plate. Rub glass rims with a lime wedge to moisten. Dip rims in salt to coat.
Pour margarita mixture into glasses; garnish with lime wedges. Makes 4 servings.