If you can't find cranberry powder substitute a 1/4 cup of fresh or frozen cranberries or even cranberry juice.
Add different fruit such as frozen banana or blueberries.
If you would like it a little sweeter you can drizzle in a bit of natural sweetener such as honey,agave nectar, or maple syrup to taste. Or try a pinch of stevia!
Give this drink another boost of nutrition and pour in a 1/4 cup of fresh orange juice!
Add a scoop of protein powder for even more staying power.
Use almond milk and coconut yogurt for a dairy-free version.