Chocolate Protein Banana Bread delivers a moist, fudgy treat packed with 15g of protein per slice. This easy recipe uses simple ingredients for a healthier twist on classic banana bread, perfect for breakfast, snacks, or dessert.

Why This Recipe Stands Out
Rich chocolate flavor combines with ripe bananas for natural sweetness and moisture. Protein powder boosts nutrition without compromising taste, yielding tender results every time.
Customizable for dietary needs, it mixes by hand in one bowl and bakes reliably. Readers enjoy its gooey chocolate chips and coffee pairing potential.
Ingredients (12 Slices)
| Ingredient | Amount | Role | Substitutions |
|---|---|---|---|
| Overripe bananas (mashed) | 1 1/2 cups (about 3 medium) | Sweetness, moisture | None ideal; use very brown-spotted for best flavor |
| Chocolate whey protein powder | 1/2 cup (about 2 scoops) | Protein, chocolate flavor | Vegan pea/soy protein (add 2-3 tbsp milk if drier) |
| Cocoa powder (unsweetened, sifted) | 1/3 cup | Deep chocolate taste | Dutch-processed for richer color |
| Oat flour (or all-purpose) | 1 cup | Structure | Gluten-free 1:1 blend |
| Granulated sweetener (e.g., coconut sugar) | 1/2 cup | Balanced sweetness | Stevia blend, erythritol (adjust to taste) |
| Cornstarch | 2 tbsp | Tenderness | Arrowroot powder |
| Baking soda | 1 tsp | Rise | – |
| Salt | 1/2 tsp | Flavor balance | – |
| Egg | 1 large | Binding | Flax egg (1 tbsp flax + 3 tbsp water) for vegan |
| Olive oil | 1/4 cup | Moisture | Avocado oil, applesauce (lower fat) |
| Plain yogurt (Greek or dairy-free) | 1/4 cup | Tang, tenderness | Sour cream, mashed banana extra |
| Vanilla extract | 1 tsp | Aroma | – |
| Dark chocolate chips | 1/2 cup + extra for top | Gooey bites | Sugar-free chips |
Yields one 9×5-inch loaf. Prep: 10 min. Bake: 50-60 min.
Step-by-Step Instructions
- Preheat oven to 350°F (175°C). Grease a 9×5-inch loaf pan or line with parchment for easy release.
- In a large bowl, whisk dry ingredients: oat flour, protein powder, cocoa, cornstarch, baking soda, salt, and sweetener.
- In a medium bowl, mash bananas until smooth. Whisk in egg, oil, yogurt, and vanilla.
- Pour wet into dry. Stir gently until just combined—no overmixing for fluffiness. Fold in chocolate chips.
- Spread batter into pan. Sprinkle extra chips on top. Bake 50-60 minutes; toothpick in center should exit with moist crumbs (mine took 55 min).
- Cool in pan 10 minutes, then transfer to wire rack. Slice once fully cooled for clean cuts.
Nutrition Per Slice (Approximate)
Based on whey protein, dark chips, coconut sugar (12 slices):
- Calories: 200
- Protein: 15g
- Carbs: 25g (5g fiber, 10g sugar)
- Fat: 8g
Vegan version (flax egg, pea protein, applesauce): ~180 cal, 12g protein. Values vary by brands—track with your app.
Expert Tips for Success
Ripe, speckled bananas mash easiest and taste sweetest—bake unpeeled at 300°F for 15-20 min to ripen if needed.
Cover with foil after 40 minutes to prevent top cracking. Aluminum pans heat evenly; glass takes longer.
Test doneness early—protein powders absorb differently. Store airtight; reheat slices 10-15 seconds in microwave.
Storage and Freezing
Room temperature: 2 days in covered container.
Fridge: Up to 1 week; warm slices for best texture.
Freeze whole loaf or slices (wrapped tightly) for 3 months. Thaw overnight in fridge.
Delicious Variations
- Vegan: Swap egg for flax, whey for pea protein, yogurt for coconut.
- Low-Carb/Keto: Almond flour + erythritol; omit chips or use lily’s.
- Add-Ins: 1/2 cup walnuts/pecans, peanut butter swirl, espresso powder (1 tsp for mocha vibe), shredded coconut.
| Variation | Protein/Slice | Key Swap |
|---|---|---|
| Classic | 15g | Whey + chips |
| Vegan | 12g | Pea protein + flax |
| Keto | 14g | Almond flour + erythritol |
Serving Ideas
Pair warm slices with coffee or tea for afternoon indulgence. Spread almond butter and flaky salt for extra decadence.
Top with Greek yogurt and berries for breakfast parfait. Microwave 15 seconds, add Nutella drizzle for dessert.
Kids love it plain; adults enjoy as post-workout fuel.
Frequently Asked Questions
Can I use plant-based protein?
Yes, but add 2-3 tbsp milk—plant proteins absorb more liquid.
Why overripe bananas?
They’re sweeter and mash smoothly for better moisture and flavor.
Muffin version?
Fill lined tins 3/4 full; bake 20-25 min at 350°F.
Too dense?
Avoid overmixing; ensure baking soda is fresh.
Gluten-free?
Oat flour or 1:1 GF blend works perfectly.
No chocolate chips?
Swap for blueberries, nuts, or leave plain for lower sugar.
How to ripen bananas fast?
Oven at 300°F, unpeeled, 15-30 min until peels blacken. Cool before peeling.
Try this recipe and share your tweaks in the comments below! Rate the stars if you love it. Pin for later.
PrintEasy Chocolate Protein Banana Loaf Baking
This chocolate protein banana bread delivers a moist, fudgy texture with rich cocoa flavor and 18g of protein per slice. Perfect for breakfast, snacks, or dessert, it uses simple ingredients and requires no special equipment.
- Prep Time: PT10M
- Cook Time: PT55M
- Total Time: PT65M
- Yield: 12 slices 1x
- Category: Dessert, Breakfast, Snack
- Method: Baking
- Cuisine: American
Ingredients
1 1/2 cups mashed ripe bananas (about 3 medium)
3/4 cup chocolate protein powder (whey or vegan pea/soy)
1 1/2 cups oat flour (blend rolled oats if needed)
1/3 cup unsweetened cocoa powder
1/2 cup granulated sweetener (erythritol, coconut sugar, or stevia blend)
1 teaspoon baking soda
1/2 teaspoon baking powder
1/2 teaspoon salt
2 large eggs (or flax eggs: 2 tbsp ground flax + 5 tbsp water)
1/4 cup olive oil or melted coconut oil
1/4 cup plain yogurt or almond butter
2 teaspoons vanilla extract
1/2 cup dark chocolate chips (divided)
1/4 cup milk of choice
Instructions
1. Preheat oven to 350°F (175°C). Grease 9×5-inch loaf pan or line with parchment.
2. Mix dry ingredients: oat flour, protein powder, cocoa, sweetener, baking soda, powder, salt.
3. Prepare wet: mash bananas smooth, stir in eggs, oil, yogurt, vanilla, milk.
4. Combine wet into dry until just mixed. Fold in 1/2 cup chocolate chips.
5. Spread in pan, top with extra chips. Bake 50-60 min (tent foil after 40 min).
6. Cool in pan 15 min, then on rack completely.
Notes
Storage: Counter 2 days, fridge 1 week, freeze 3 months.
Vegan: Use flax eggs + plant yogurt.
Keto: Sugar-free sweetener + almond flour half oats.
Tip: Use spotty ripe bananas for best flavor/moisture.
Nutrition
- Serving Size: 1 slice
- Calories: 210
- Sugar: 8g
- Sodium: 250mg
- Fat: 8g
- Saturated Fat: 3g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 24g
- Fiber: 4g
- Protein: 18g
- Cholesterol: 35mg
