The night before, peel the banana, slice into large coins, and place in a plastic bag in the freezer.
When the banana is completely frozen, measure 1/2 cup and add it to a blender, along with the rest of the ingredients. Blend until smooth.
Pour into a large glass and drizzle with extra peanut butter if desired. Enjoy immediately.
Video
Notes
Note 1: Or milk of choice; use chocolate almond milk for a more chocolate-y shake!Note 2: To use powdered peanut butter in this shake, combine 2 tablespoons powdered peanut butter with 1/2 tablespoon real peanut butter.Note 3:The protein powder you use makes a huge difference in the taste of the shake. My favorites are Just Ingredients chocolate-coconut flavor and Clean Simple Eats chocolate. Choose a sweetened protein powder that tastes good to you; it can really make or break the shake’s flavor.Storage: Best enjoyed immediately.