In a blender combine milk, orange juice concentrate, powdered sugar and vanilla. Cover and blend until smooth. With the blender running, add ice cubes one at a time, through open lid; blend until smooth and frothy. Pour into tall glasses; serve immediately. Yields 1 quart. This shake can also be poured into freezer-pop containers for a dreamsicle snack.
170 calories; 0 g fat; 0 g saturated fat; 0 mg cholesterol; 5 g protein; 39 g carbohydrates; 0 g fiber; 70 mg sodium; 140 mg calcium. Nutrition information based on fat free milk.