High Protein Banana Bread with Peanut Butter (Easy & Moist Recipe)
Looking for a healthier banana bread that doesn't compromise on flavour? This high protein banana bread has all the comforting taste and soft texture of a classic loaf, with a nutritional boost thanks to Greek yogurt, whey protein, and Nutshed Original Smooth Peanut Butter.

With around 11g of protein per slice, it's ideal for breakfast, post-workout fuel, meal prep, or an afternoon snack. We love serving ours generously topped with peanut butter, fresh berries, and a drizzle of honey—but it's equally delicious straight from the loaf tin.
Why You'll Love This High Protein Banana Bread
Around 11g of protein per slice
Moist, soft texture
Made with Greek yogurt and peanut butter
Perfect for meal prep
Great for breakfast or snacks
Freezer friendly
Ingredients
Dry Ingredients
80g plain flour
80g wholemeal flour
55g vanilla whey protein
1 tsp baking powder
½ tsp bread soda
½ tsp salt
Wet Ingredients
40g butter, melted
60g Nutshed Original Smooth Peanut Butter
80g soft brown sugar
2 whole eggs
2 egg whites
300g very ripe bananas (about 3 medium)
120g 0% Greek yogurt
1 tsp vanilla extract
How to Make High Protein Banana Bread
Step 1
Preheat your oven to 170°C and line a loaf tin with baking paper.
Step 2
Melt the butter and peanut butter together. Leave to cool slightly before whisking in the brown sugar.
Step 3
Add the eggs and egg whites one at a time, whisking well after each addition.
Step 4
Stir in the mashed bananas, Greek yogurt and vanilla extract until smooth.
Step 5
In a separate bowl, combine the flour, wholemeal flour, protein powder, baking powder, bread soda and salt.
Step 6
Fold the dry ingredients into the wet ingredients until just combined. Avoid overmixing.
Step 7
Let the batter rest for 5 minutes before pouring it into your prepared loaf tin.
Step 8
Bake for 55–65 minutes. If the loaf begins browning too quickly, loosely cover with foil after about 40 minutes.
Step 9
Check the loaf with a skewer. It should come out clean or with a few moist crumbs.
Step 10
Leave to cool in the tin for 20 minutes before transferring to a wire rack. For the best texture, allow it to cool completely before slicing.
Serving Suggestions
We love serving this banana bread with:
A generous spoonful of Nutshed Original Smooth Peanut Butter
Stewed berries
Raspberry jam
Fresh strawberries or blueberries
A drizzle of honey

Optional Add-Ins
Customise your loaf with:
A banana sliced lengthways on top before baking
A sprinkle of brown sugar for a caramelised crust
Dark chocolate chips
Chopped walnuts or pecans
Cinnamon for extra warmth
Storage Tips
Store in an airtight container for up to 4 days at room temperature or in the fridge for up to a week.
You can also freeze individual slices for up to 3 months—perfect for meal prepping.
Frequently Asked Questions
Can I make this banana bread without protein powder?
Yes. Replace the protein powder with extra flour, although the protein content will be lower and the texture may be slightly different.
Can I freeze high protein banana bread?
Absolutely. Slice the loaf before freezing so you can defrost individual portions as needed.
Why use Greek yogurt in banana bread?
Greek yogurt adds moisture while increasing the protein content, helping create a soft, tender crumb.
Can I use crunchy peanut butter?
Yes. Crunchy peanut butter adds extra texture and a delicious nutty bite.