Combine all ingredients (frozen berries, banana, yogurt, milk, sweetener, and any optional additions) in a blender.
Blend on high speed until completely smooth and creamy. If too thick, add a little more milk, 1 tablespoon at a time, until desired consistency is reached.
Pour into a glass and serve immediately.
Combine all ingredients (frozen berries, banana, yogurt, milk, sweetener, and any optional additions) in a blender.
Blend on high speed until completely smooth and creamy. If too thick, add a little more milk, 1 tablespoon at a time, until desired consistency is reached.
Pour into a glass and serve immediately