Thick and Fudgy Chocolate Peanut Butter Smoothie (vegan, GF)

"Smoothies that require a spoon rather than a straw are my favorite kind. And smoothies with chocolate and peanut butter are even better. This vegan, gluten-free smoothie is thick, rich, and tastes like drinkable chocolate-peanut butter fudge. Frozen bananas add richness, fullness, and creaminess to the smoothie. You can taste them, but not overly so because they're masked by the cocoa powder and peanut butter. The smoothie hits the spot after a workout or try it before for a nice energy boost. Or make it for breakfast. Chocolate and peanut butter, the breakfast of champions...."