These were a favorite of mine whenever we went to the mall. I like the strawberry banana ones too, but here is a recipe for the classic. Enjoy!
Copycat Orange Julius
6 oz. can frozen concentrated orange juice
1 cup milk - low fat works fine
1 cup water
1/4 cup granulated sugar - splenda works too
1 tsp. vanilla extract
8 ice cubes
Pour all ingredients in a blender - blend until smooth.