If you’re looking for a simple yet indulgent treat that packs a nutritious punch, these 4-Ingredient Protein Fudge Brownies are exactly what you need. With just four wholesome ingredients, these brownies are not only easy to whip up but also satisfyingly rich and fudgy. Whether you’re fueling up post-workout or craving a sweet snack, these brownies deliver on taste without the guilt. Let’s dive into this delightful recipe that combines the sweetness of ripe bananas, the creaminess of peanut butter, and the decadence of dark chocolate!
Why This Recipe Belongs in Your Rotation

These 4-Ingredient Protein Fudge Brownies are a game-changer. Not only are they quick to prepare, but they also provide a healthy dose of protein, thanks to the addition of dark chocolate protein powder. The bananas add natural sweetness and moisture, while the peanut butter contributes healthy fats and a delicious flavor. Perfect for meal prep or a quick dessert, these brownies are versatile enough to satisfy cravings while keeping your nutritional goals in check. Plus, with minimal ingredients, you can whip them up anytime without a fuss.
What You’ll Need
- 2 cups very ripe bananas, mashed (about 4 large)
- 1 cup natural extra-crunchy peanut butter
- 1 cup clean dark chocolate protein powder (we recommend Tera’s Whey)
- 2/3 cup mini chocolate chips (Enjoy Life brand recommended)
Equipment at a Glance
- Mixing bowl – For combining your ingredients.
- Fork or potato masher – To mash the bananas smoothly.
- 9×9 inch baking pan – For baking the brownies.
- Parchment paper – Optional, for easier cleanup.
- Spatula – To spread the brownie batter evenly.
Cooking 4-Ingredient Protein Fudge Brownies: The Process

Step 1: Preheat Your Oven
Start by preheating your oven to 350°F (175°C). This ensures that your brownies bake evenly and achieve that perfect fudgy texture.
Step 2: Mash the Bananas
In a large mixing bowl, mash your very ripe bananas using a fork or potato masher. Aim for a smooth consistency with minimal lumps—this will help incorporate the bananas into the batter seamlessly.
Step 3: Add Peanut Butter
Once your bananas are mashed, stir in the natural extra-crunchy peanut butter. Mix until well combined. The creamy texture of the peanut butter will blend beautifully with the bananas.
Step 4: Incorporate Protein Powder
Next, add the clean dark chocolate protein powder to the banana and peanut butter mixture. Stir until everything is combined, and you have a thick, fudgy batter. The protein powder adds a rich chocolate flavor and boosts the brownies’ nutritional value.
Step 5: Fold in Mini Chocolate Chips
Gently fold in the mini chocolate chips, reserving a few to sprinkle on top if desired. This step adds little pockets of melted chocolate throughout the brownies, enhancing the overall taste.
Step 6: Prepare the Baking Pan
Line your 9×9 inch baking pan with parchment paper for easy removal and cleanup. Pour the brownie batter into the prepared pan, spreading it evenly with a spatula.
Step 7: Bake
Bake the brownies in the preheated oven for 20-25 minutes, or until a toothpick inserted into the center comes out mostly clean. The brownies will continue to firm up as they cool.
Step 8: Cool and Cut
Allow the brownies to cool in the pan for about 10 minutes before transferring them to a wire rack to cool completely. Once cooled, cut into squares and enjoy your delicious 4-Ingredient Protein Fudge Brownies!
Adaptations for Special Diets

- Vegan: Ensure your peanut butter is dairy-free and choose a vegan protein powder.
- Nut-Free: Substitute peanut butter with sunflower seed butter or tahini.
- Gluten-Free: This recipe is naturally gluten-free, but double-check your protein powder to ensure it’s certified gluten-free.
- Low-Sugar: Use unsweetened protein powder and reduce the amount of mini chocolate chips.
Chef’s Rationale
These 4-Ingredient Protein Fudge Brownies are not just a treat; they’re a wholesome snack option that provides energy and satisfaction. The combination of bananas and peanut butter creates a naturally sweet base while ensuring a fudgy texture. The dark chocolate protein powder offers a rich flavor and supports your protein intake, making these brownies a smart choice for anyone looking to indulge without compromising their diet. Plus, the recipe is incredibly flexible, allowing you to customize it to fit your dietary needs or preferences.
Store, Freeze & Reheat
To store your 4-Ingredient Protein Fudge Brownies, keep them in an airtight container at room temperature for up to three days. If you’d like to extend their shelf life, you can freeze them. Simply wrap individual brownies in plastic wrap and place them in a freezer-safe bag; they’ll stay fresh for up to three months. When you’re ready to enjoy, let them thaw at room temperature or microwave for a few seconds for a warm, gooey treat!
Ask & Learn
Can I substitute the peanut butter for another type of nut butter?
Absolutely! You can use almond butter, cashew butter, or any nut butter of your choice. Just be aware that the flavor may vary slightly based on the nut butter used.
How do I know when the brownies are done baking?
Check for doneness by inserting a toothpick into the center of the brownies. If it comes out mostly clean with a few moist crumbs, they’re ready. Remember, they will continue to firm up as they cool.
What can I add to the brownies for extra flavor?
Feel free to mix in nuts, seeds, or dried fruit for added texture and flavor. Spices like cinnamon or vanilla extract can also enhance the overall taste.
Can I use a different type of protein powder?
Yes, you can use other flavors or types of protein powder, but keep in mind that the flavor and sweetness may change. Chocolate or vanilla protein powder would work well in this recipe.
More from the Kitchen
Ready to Cook?
Now that you have the recipe and know the ins and outs of making 4-Ingredient Protein Fudge Brownies, it’s time to get into the kitchen and enjoy the process! These brownies are not only a delicious treat but also a guilt-free way to satisfy your chocolate cravings. Happy baking!

4-Ingredient Protein Fudge Brownies
Ingredients
- 2 cups very ripe bananas (mashed, about 4 large)
- 1 cup natural extra-crunchy peanut butter
- 1 cup clean dark chocolate protein powder (we recommend Tera's Whey)
- 2/3 cup mini chocolate chips (Enjoy Life brand recommended)
Instructions
- Step 1: Preheat your oven to 350°F (175°C) for even baking.
- Step 2: In a large mixing bowl, mash the very ripe bananas using a fork or potato masher until smooth.
- Step 3: Stir in the natural extra-crunchy peanut butter until well combined.
- Step 4: Add the clean dark chocolate protein powder and stir until you have a thick, fudgy batter.
- Step 5: Gently fold in the mini chocolate chips, reserving a few to sprinkle on top.
- Step 6: Line your 9x9 inch baking pan with parchment paper and pour the brownie batter into the pan, spreading it evenly.
- Step 7: Bake for 20-25 minutes, or until a toothpick inserted in the center comes out mostly clean.
- Step 8: Allow the brownies to cool in the pan for about 10 minutes before transferring them to a wire rack to cool completely, then cut into squares.
Equipment
- Mixing Bowl
- Fork or potato masher
- 9x9-inch Baking Pan
- Parchment Paper
- Spatula
Notes
- Store in an airtight container at room temperature for up to three days.
- Freeze individual brownies wrapped in plastic for up to three months.
- Let frozen brownies thaw at room temperature or microwave for a warm treat.
