Watermelon Margaritas

From Cooking Light.

• Ready In: 5 mins
• Serves: 5

Ingredients

• 2  cups  diced seeded watermelon, frozen
• 3⁄4 cup  tequila
• 1⁄3 cup triple sec (orange-flavored liqueur)
• 1  tablespoon sugar
• 2  tablespoons lime juice
• 2  cups  crushed  ice
•  granulated sugar (optional)
•  lime slice (optional)
•  orange slice (optional)

Directions

1. Place frozen watermelon, tequila, triple sec, sugar, and lime juice in a blender; process until smooth. Add ice; process until smooth. Serve in glasses rimmed with sugar, and garnish with lime and orange slices, if desired.