1 c. liquid skim milk
1/3 c. instant nonfat dry milk powder
1 tbsp. unsweetened cocoa
1 tsp. vanilla
1/2 tsp. liquid sugar substitute
6-8 ice cubes

Place skim milk, milk powder, cocoa, vanilla, and liquid sugar substitute in container of electric blender. Cover and put on high speed until smooth. Remove center of cover and add ice cubes one at a time, blending until ice is crushed.

Serve immediately in tall glasses. Makes 2 servings (77 calories each). For coffee shake replace cocoa with 1 1/2 teaspoons instant coffee (69 calories each).