2 quarts ice cubes
1 (12 fluid ounce) can frozen limeade concentrate
12 fluid ounces tequila (measure with empty limeade can)
1/4 cup cointreau

Garnish:

margarita or kosher salt for the rims
lime slices (cut in half)

Working in 2 batches, place 1 quart ice cubes in a blender. add 1/2 can limeade, 6 ounces tequila and 2 tablespoons cointreau.

Blend at highest speed until drink is almost smooth. Pour into a pitcher and repeat with remaining ingredients. Store in the freezer.

To salt the Margarita glasses, pour a single layer of salt onto a salad plate. Moisten each glass rim with lime; dip each rim in the salt. Pour Margaritas into each glass; garnish with lime.

Serve immediately.

Yield: 8 6-ounce drinks.