About 10 minutes to prepare.

 - 1 can Bacardi Frozen Margarita Mix

 - Tequila

 - Grand Marnier

 - Ice

 - Water

- Pour the Margarita mix into a blender. Fill the empty can halfway full of Tequila and about 1/4 more full of Grand Marnier. Pour into blender.

- Fill blender with 2 1/2 cups ice and a cup of water.

- Blend well.

- Pour into rocks glasses, serves 4.