Place all of the ingredients in a blender and blend until smooth and frothy.
If your Orange Julius is not thick enough, add more ice. If the Julius is too thick, add a little water or milk and blend again until you reach the desired consistency. Serve immediately and enjoy!
*This is the secret ingredient for making a super citrusy Orange Julius without it getting too watery. The orange juice concentrate adds a ton of sweet-tart orange flavor while allowing the smoothie to stay thick and frothy.**While you can use a lower fat milk, it will affect the creaminess of the drink. Whole milk is recommended.