Dip glass rims in coarse-grained salt instead of sugar, if you prefer. Julie recommends straining the mixture before serving.
Makes about 5 1/2 cups
Fresh orange juice or lime juice (optional)
Blue or purple decorator sugar crystals (optional)
3 cups ice
1/3 cup tequila
2 cups fresh or frozen blueberries
1 (6-ounce) can frozen limeade concentrate
1/4 cup powdered sugar
1/4 cup orange liqueur
Dip rims of margarita glasses in orange juice, and dip in sugar crystals to coat, if desired.
Process ice and next 5 ingredients in a blender until smooth. Serve in prepared glasses.