Lime juice
Salt
Juice of 1 1/2 limes
3 tablespoons tequila
1 tablespoon vodka
1 teaspoon Triple Sec
2 cups watermelon flesh
1/4 cup sugar
4 cups crushed ice

Preparation Instructions:

Coat the rim of a glass with lime juice and dip it in salt. In a blender, combine lime juice, tequila, vodka, Triple Sec, watermelon flesh, sugar, and 3 cups crushed ice. Process until smooth; add another cup of ice, and blend until slush. Pour into the glass and serve.