Orange Julius

6 oz. frozen orange juice concentrate  (Donald Duck brand is good)
1 cup milk
1 cup water
1/2 cup sugar or powdered sugar (or 1/4 cup of each)
1 tsp. vanilla extract
8 to 9 ice cubes

Combine all ingredients except ice cubes in blender.  Blend for about 1-2 minutes, adding ice cubes one at a time.