Protein-Boosted Whey Smoothie
A creamy, naturally sweet smoothie that packs a serious protein punch—perfect after a workout or as a filling breakfast. Frozen banana gives it a milkshake-like texture while peanut butter and whey protein turn it into a satisfying drink that keeps you full for hours.
For 1 serving
- prep
Slice and freeze the banana ahead of time.
Peel one medium banana, slice into coins, and freeze on a plate for at least 2 hours until solid. Frozen banana creates a thick, creamy texture without needing ice cream.
TIPFreeze several bananas at once so you always have them ready for smoothies. - mix · ~1 min
Blend all ingredients until smooth.
1.Pour 200 ml chilled milk into the blender jug.2.Add the frozen banana slices and 1 tbsp peanut butter.3.Scoop in 1 tbsp whey protein powder.4.Add 4-5 ice cubes and blend on high for 30-45 seconds until completely smooth.TIPPulse a few times first to break the frozen banana, then blend continuously for the smoothest result. - serve
Pour into a tall glass and serve immediately.
If the smoothie is too thick, add a splash of milk and blend again. If too thin, add another ice cube or a bit more frozen banana.
What to keep in mind.
6 tips from the recipe — small details that make a real difference to the final dish.
- 1Freeze bananas in single-layer slices on a tray before bagging to prevent clumping.
- 2Use unsweetened peanut butter to let the banana and whey control the sweetness.
- 3Add liquid first to the blender to help the blades spin freely and avoid stuck chunks.
- 4Blend in short pulses first to break up frozen banana, then run continuously for a silky texture.
- 5Adjust thickness with milk (to thin) or extra frozen banana (to thicken) after blending.
- 6Rinse the blender immediately after pouring to prevent protein residue from sticking.
Adapt it for your goals.
Vegan
Swap dairy milk for unsweetened almond, oat, or soy milk and use a plant-based protein powder instead of whey. The texture remains creamy thanks to the frozen banana.
Chocolate Peanut ButterChocolate Peanut Butter
Add 1 teaspoon of unsweetened cocoa powder along with the other ingredients for a chocolate-peanut butter flavor that pairs beautifully with banana.
Low Oil/No PeanutLow-Oil/No-Peanut
Replace peanut butter with 1 tablespoon of powdered peanut butter (reconstituted with water) or omit entirely and add an extra ½ tablespoon of whey for a leaner, lower-fat smoothie.
Berry BoostBerry Boost
Add a handful of frozen berries (strawberries, blueberries, or raspberries) to introduce antioxidants and a tart flavor contrast. Adjust sweetness with a drizzle of honey if needed.
Why this is on our healthy list.
High in Lean Protein
Whey protein provides a complete source of essential amino acids, supporting muscle repair and recovery after exercise.
Rich in Potassium
Bananas are a well-known source of potassium, which helps regulate fluid balance and muscle contractions.
Healthy Fats for Satiety
A tablespoon of peanut butter adds unsaturated fats that slow digestion and keep you feeling fuller for longer.
Natural Energy Without Added Sugar
The natural sugars in banana provide quick energy, while protein and fat offer sustained fuel—no refined sweeteners needed.
Frequently asked questions
Yes, but the smoothie will be much thinner and less creamy. Add a few extra ice cubes to compensate, but the texture won't be as milkshake-like.
