Chocolate Protein Banana Bread delivers a fudgy, chocolatey treat packed with 15g protein per slice. This easy recipe uses ripe bananas for natural sweetness and swaps in protein powder for a healthier twist on classic banana bread. Perfect for breakfast, snacks, or dessert, it bakes in one bowl with simple ingredients.

Why You’ll Love This Recipe
This banana bread combines rich cocoa flavor with gooey chocolate chips and a boost of protein to keep you satisfied longer. Mashed overripe bananas ensure moisture without extra sugar, while customizable subs make it adaptable for vegan, gluten-free, or low-carb diets. Each slice offers balanced nutrition in a comforting, indulgent texture that rivals brownies.
Ingredients (Makes 10 Slices)
Use this table for exact measurements and easy substitutions:
| Ingredient | Amount | Notes/Substitutions |
|---|---|---|
| Overripe bananas (mashed) | 1 1/2 cups (3 medium) | Spotted brown bananas for max sweetness; organic preferred |
| Chocolate protein powder | 3/4 cup (about 2 scoops) | Whey, pea, or soy; vegan options may need 2-3 tbsp extra milk |
| Oat flour (or all-purpose) | 1 1/2 cups | Blend rolled oats for homemade; gluten-free blend works |
| Cocoa powder (unsweetened) | 1/3 cup | Sift if lumpy for smooth batter |
| Granulated sweetener | 1/2 cup | Coconut sugar, erythritol, or stevia (adjust to taste) |
| Olive oil or almond butter | 1/3 cup | Applesauce for lower fat; coconut oil alternative |
| Eggs or flax eggs | 2 large | Mix 2 tbsp ground flax + 5 tbsp water for vegan |
| Vanilla extract | 1 tsp | Pure for best flavor |
| Baking soda | 1 tsp | Ensures proper rise |
| Salt | 1/2 tsp | Balances sweetness |
| Chocolate chips | 1/2 cup + extra for top | Dark or sugar-free for health boost |
| Greek yogurt or milk | 1/4 cup | Adds moisture; dairy-free yogurt fine |
Step-by-Step Instructions
- Preheat oven to 350°F (175°C). Grease a 9×5-inch loaf pan or line with parchment paper for easy release.
- In a large bowl, mash bananas until smooth with no lumps using a fork or potato masher.
- Whisk in eggs (or flax eggs), oil (or almond butter), yogurt (or milk), vanilla, and sweetener until fully combined.
- In the same bowl, add oat flour, protein powder, cocoa powder, baking soda, and salt. Stir gently until just mixed – do not overmix for tender crumb.
- Fold in 1/2 cup chocolate chips. Pour batter into prepared pan, smooth top, and sprinkle extra chips.
- Bake 50-60 minutes, tenting with foil after 40 minutes if top browns too fast. Toothpick in center should come out clean or with moist crumbs.
- Cool in pan 10 minutes, then transfer to wire rack. Slice once fully cooled for best texture.
Expert Tips for Perfect Results
Ripe, speckled bananas mash easiest and sweeten naturally – greener ones yield less flavor. For denser batter from plant protein, add milk 1 tbsp at a time. Mix-ins like walnuts, pecans, or espresso powder enhance chocolate notes without overpowering. Test doneness early to avoid dry edges.
Storage and Freezing
Store covered at room temperature up to 2 days or refrigerate up to 1 week – reheat slices 10-15 seconds in microwave. Freeze whole loaf or slices wrapped tightly in plastic and foil for 3 months; thaw overnight in fridge.
Nutrition (Per Slice, Approx.)
Calories: 200 | Protein: 15g | Carbs: 25g (4g fiber) | Fat: 6g | Sugar: 8g
Values vary by subs (e.g., vegan: 12g protein; low-carb with erythritol: 18g net carbs). Calculated for standard whey version without extra chips.
Common Questions
Can I make muffins? Yes, fill liners 3/4 full and bake 20-25 minutes.
Vegan version? Use flax eggs, plant protein, and dairy-free chips/yogurt.
Lower carb? Swap half oat flour for almond flour and use erythritol.
Why my bread sank? Overmixing or underripe bananas – measure accurately next time.
Serving Ideas
Spread with peanut butter and sea salt for decadence, top with Greek yogurt and berries for breakfast, or enjoy plain as a post-workout snack. Pairs perfectly with coffee.
Love this recipe? Rate it below and share your tweaks in comments. Try our protein muffins next!
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Easy Chocolate Protein Banana Loaf Baking
- Total Time: PT65M
- Yield: 12 slices 1x
Description
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.
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.
- Prep Time: PT10M
- Cook Time: PT55M
- Category: Dessert, Breakfast, Snack
- Method: Baking
- Cuisine: American
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

