Add the frozen banana, almond milk, chocolate protein powder, cocoa powder, and vanilla extract to a blender. Tip: For a thicker shake, use less almond milk.

Blend on high speed until smooth and creamy, about 30-45 seconds. Tip: If the shake is too thick, add a splash more almond milk.

Taste and adjust sweetness with honey or maple syrup if desired. Tip: For extra protein, add a tablespoon of chia seeds.

Pour into a tall glass and enjoy immediately. Tip: Garnish with a banana slice or a sprinkle of cocoa powder for a fancy touch.