High-Protein Peanut Butter & Banana Smoothie Recipe

A creamy, nutrient-packed blend of ripe bananas, natural peanut butter, and protein powder creates a satisfying smoothie that doubles as breakfast or post-workout fuel.
Difficulty:
Beginner
Prep Time:
5 mins
Cook Time:
0 mins
Serves:
2 smoothies
An overhead shot of a tall glass filled with a thick, golden-beige smoothie with tiny flecks of banana visible throughout. The glass sits on a rustic wooden board beside scattered ingredients - a peeled banana, a jar of natural peanut butter with its lid off, and a small scoop of protein powder. A metal straw tilts from the rim, around which a light drizzle of peanut butter creates an artistic swirl. Soft natural morning light highlights the creamy texture and subtly illuminates the condensation forming on the outside of the glass, suggesting refreshing coldness.

Ingredients

<ul class="ingredients-main-list"> <li class="ingredients-single-item">2 medium ripe bananas, frozen and chopped</li> <li class="ingredients-single-item">60g natural peanut butter (no added sugar)</li> <li class="ingredients-single-item">250ml unsweetened almond milk (or any milk of choice)</li> <li class="ingredients-single-item">150g Greek yogurt</li> <li class="ingredients-single-item">30g vanilla protein powder (whey or plant-based)</li> <li class="ingredients-single-item">1 tbsp honey or maple syrup (optional)</li> <li class="ingredients-single-item">1/2 tsp ground cinnamon</li> <li class="ingredients-single-item">1/2 tsp vanilla extract</li> <li class="ingredients-single-item">6-8 ice cubes (optional, for extra thickness)</li> </ul>

Equipment

<ul class="equipment-main-list"> <li class="equipment-single-item">Blender or food processor</li> <li class="equipment-single-item">Measuring scales</li> </ul>
BAKE SMARTER

Kitchen Converter

Quickly switch between common baking units without leaving the recipe.

Convert
Result—

Volume uses US cups, tablespoons, and teaspoons. Converting weight to volume depends on the ingredient.

Directions

<ol class="no-list-style"> <li class="MethodStepper"> <h4 class="step-title">Step 1</h4> Prepare by freezing your bananas at least 4 hours ahead of time (ideally overnight). Peel and chop them into chunks before freezing. Frozen bananas create a creamier, ice cream-like texture in your smoothie without diluting the flavor like ice cubes can. </li> <li class="MethodStepper"> <h4 class="step-title">Step 2</h4> Add the frozen banana chunks to your blender. The order of ingredients matters – placing frozen items at the bottom near the blades helps create a vortex effect for smoother blending. </li> <li class="MethodStepper"> <h4 class="step-title">Step 3</h4> Add the peanut butter, Greek yogurt, almond milk, protein powder, cinnamon, vanilla extract, and sweetener (if using). The fat in the peanut butter helps your body absorb the fat-soluble vitamins in the banana, while the protein powder and Greek yogurt provide a complete amino acid profile. </li> <li class="MethodStepper"> <h4 class="step-title">Step 4</h4> Blend on low speed for 10-15 seconds to break down the frozen banana, then increase to medium-high speed and blend for 45-60 seconds until completely smooth and creamy. If the mixture seems too thick, add a splash more milk; if too thin, add a few ice cubes and blend again. </li> <li class="MethodStepper"> <h4 class="step-title">Step 5</h4> Pour into glasses and serve immediately. For a bakery-inspired presentation, drizzle a teaspoon of melted peanut butter around the inside of each glass before pouring in the smoothie. The smoothie is best enjoyed fresh but can be refrigerated for up to 2 hours (though separation may occur – simply stir before drinking). </li> <li class="MethodStepper"> <h4 class="step-title">Step 6</h4> For a thicker, spoonable smoothie bowl version, reduce the milk by half and top with granola, sliced banana, and a sprinkle of crushed peanuts for a delightful contrast of textures similar to a deconstructed peanut butter banana bread. </li> </ol>

Nutrition Facts (per serving)

🍽️ Serving Size: 1 bowl
🔥 Calories: 520 calories
🥑 Fat: 22 g
🧈 Saturated Fat: 4 g
🍞 Carbohydrates: 58 g
🍭 Sugar: 12 g
🍗 Protein: 24 g
🫀 Cholesterol: 0 mg
🧂 Sodium: 380 mg

Chef’s Notes

A few helpful details for making this recipe.

Can I make this smoothie without protein powder?

Absolutely! You can skip the protein powder and increase the Greek yogurt to 200g for a protein boost. Alternatively, add 2-3 tablespoons of hemp seeds, chia seeds, or ground flaxseed which provide not only protein but also beneficial omega-3 fatty acids and additional fibre.

What's the best way to meal prep protein smoothies for the week?

Prepare smoothie freezer packs by portioning all ingredients except liquids into freezer bags. Alternatively, blend complete smoothies and freeze in ice cube trays or mason jars (leaving room for expansion). Defrost overnight in the fridge or blend frozen cubes with fresh milk for instant smoothies.

How can I make this peanut butter banana smoothie more filling for a complete breakfast?

Boost satiety by adding 1-2 tablespoons of chia seeds or ground flaxseed for healthy fats and fibre. Add a handful of oats for complex carbs and staying power. Serving alongside whole grain toast with additional peanut butter creates a balanced breakfast with protein, fat, and carbs.

Want to try something else in ...

More recipes you might like

Keep exploring with more recipes from What's Baking.