Orange Julius

1 can (6oz) frozen orange juice concentrate (or less)
1 c. milk
1 c. water
1/3 c. sugar (or less)
2-3 Tbsp. powdered sugar
1 tsp vanilla
about 9 ice cubes

In a blender, blend all ingredients except ice. Slowly add ice cubes one at a time until it reaches a "smoothie" consistency. Serve immediately.
(*If you are adding frozen fruit, add a little at a time BEFORE adding ice cubes. If using fresh fruit, add at the very beginning when you are blending everything else.)