Grapefruit Margaritas

Directions

1. 1
   Combine all ingredients in an electric blender, adding ice to 3 1/2 cup level.
2. 2
   Process just until ice is finely crushed.
3. 3
   Pour into a pitcher and serve immediately, or cover and freeze.
4. 4
   Note: For the freshest flavor, squeeze your own grapefruit juice.
5. 5
   Try freezing juice in ice cube trays; add frozen cubes to blender.
6. 6
   Make Ahead: If you want slushy margaritas for a crowd, make several batches in advance and freeze until ready to serve.
7. 7
   There's no need to thaw them; just stir and serve.