In the bottom of a blender, add water, blueberries, and protein powder or Greek yogurt. Blend until smooth. Taste and add maple syrup if desired.
Notes
Blueberries: To substitute fresh blueberries, add ½ cup ice or more to the blender.
Protein powder: Use either your favorite vanilla protein powder or ½ cup Greek yogurt.
Maple syrup: Taste the smoothie before adding any sweeteners, then start with a teaspoon of maple syrup or honey. If you use a vanilla-flavored protein powder, you probably won’t need anything.
Yield: This recipe makes about 2 cups of smoothie, enough for 1 serving.
Storage: Store leftovers covered in the refrigerator for up to 4 days. Some separation may occur, so shake or stir to combine before enjoying.