Prep Time: 5 minutes Number of Servings: 4 Recipe Source: From the American Institute for Cancer Research Ingredients 4 cups nonfat milk 4 Tbsp smooth peanut butter 4 frozen bananas Sugar or honey to taste (optional) 1⁄8 to 1⁄4 tsp cinnamon 1⁄4 tsp vanilla Directions In blender, place milk and peanut butter. Blend for 30 seconds. Add bananas, optional sugar or honey, cinnamon, and vanilla. Blend until mixture is completely combined. Serve immediately. Tags: smoothiesquickbananas You Might Also Like... Banana, Green Tea & Pistachio Smoothie Pineapple Banana Smoothie Chocolate Mint Smoothie