Chocolate Fluffernutter Protein Brownies [grain-free + no added sugar]

These easy Chocolate Fluffernutter Brownies combine rich chocolate, a peanut butter swirl, gooey marshmallows, and chocolate chips for a delicious high-protein dessert.

If you love the combination of chocolate, peanut butter, and marshmallows, you need to try these Chocolate Fluffernutter Brownies! They’re rich, fudgy, chocolatey, and packed with protein, with a creamy peanut butter swirl, gooey marshmallows, and melty chocolate chips on top.

These easy protein brownies come together in just a few simple steps and make the perfect high-protein dessert or sweet snack when a serious chocolate craving hits.

What Are Fluffernutter Protein Brownies?

A traditional fluffernutter combines peanut butter and marshmallow fluff, usually in sandwich form. These Chocolate Fluffernutter Brownies take that classic flavor combination and turn it into a decadent chocolate dessert.

Instead of marshmallow fluff, these brownies are topped with actual marshmallows that get warm and gooey as they bake. The peanut butter swirl adds creamy, nutty flavor that pairs perfectly with the rich chocolate brownie base.

Why You’ll Love These Chocolate Fluffernutter Protein Brownies

These brownies have everything you want in a chocolate dessert while adding a boost of protein.

• Rich and chocolatey
• Packed with protein
• Easy to make in a blender
• Naturally sweetened with plantain
• Loaded with peanut butter flavor
• Gooey marshmallow topping
• Finished with chocolate chips
• Perfect for satisfying a chocolate craving

Ingredients You’ll Need

Yellow plantain: A ripe yellow plantain provides natural sweetness and helps create a soft, fudgy brownie texture.

Cocoa powder: Cocoa powder gives these brownies their rich chocolate flavor without needing a lot of additional ingredients.

Equip Foods Chocolate Beef Protein: Chocolate protein powder adds a boost of protein while making the brownies extra chocolatey.

Liquid egg whites: Egg whites help provide structure and additional protein while keeping the brownies light.

Baking powder: A small amount of baking powder helps the brownies rise slightly as they bake.

Peanut powder: Peanut powder is mixed with water to create an easy peanut butter swirl that gets baked right into the brownies.

Protein marshmallows: Marshmallows are what make these brownies a true fluffernutter-inspired dessert. They become soft, gooey, and lightly toasted in the oven.

Sugar-free chocolate chips: Chocolate chips add little pockets of melted chocolate throughout the marshmallow topping.

How To Make Chocolate Fluffernutter Brownies

Start by preheating your oven to 350°F.

Add the yellow plantain, cocoa powder, chocolate protein powder, liquid egg whites, and baking powder to a blender. Blend until the mixture is completely smooth and creamy.

Pour the brownie batter into a prepared loaf pan and spread it into an even layer.

Next, make the peanut butter swirl. Combine the peanut powder and water in a small bowl and stir until smooth and creamy.

Drizzle the peanut butter mixture over the brownie batter. Use a knife or toothpick to gently swirl the peanut butter throughout the chocolate batter.

Top the brownies with marshmallows and sprinkle the chocolate chips evenly over the top.

Bake for about 20 minutes, or until the brownies are set and the marshmallows are warm, gooey, and lightly golden.

Let the brownies cool slightly before slicing and enjoying.

Tips For The Best Protein Brownies

Use a ripe plantain. A yellow, ripe plantain will provide more natural sweetness and blend more easily into the batter.

Don’t overbake. For soft and fudgy brownies, keep a close eye on them toward the end of the baking time. They should be set but still soft in the center.

Let them cool before slicing. Giving the brownies a few minutes to cool allows them to firm up slightly while keeping that delicious fudgy texture.

Swirl, don’t fully mix. When adding the peanut butter mixture, gently swirl it through the batter so you get distinct ribbons of peanut butter in every bite.

How To Store Chocolate Fluffernutter Brownies

Store leftover brownies in an airtight container at room temperature for short-term storage or refrigerate them for longer freshness.

If refrigerated, allow the brownies to come closer to room temperature before serving, or warm them briefly in the microwave to bring back that soft, gooey texture.

Frequently Asked Questions

Are These Brownies High In Protein?

Yes! These brownies use chocolate protein powder and liquid egg whites to add a significant boost of protein compared with traditional brownies.

Can I Use Peanut Butter Instead Of Peanut Powder?

Yes. You can substitute creamy peanut butter for the peanut powder mixture, although the consistency and amount of peanut butter throughout the brownies may be slightly different.

Can I Make These Brownies Ahead Of Time?

Absolutely. These brownies can be prepared ahead of time and stored in an airtight container until you’re ready to enjoy them.

What Makes These Fluffernutter Brownies?

The combination of chocolate, peanut butter, and marshmallows is what gives these brownies their fluffernutter-inspired flavor. The gooey marshmallow topping acts as the “fluff” while the peanut butter swirl brings in the classic peanut butter component.

Recipe Notes

These Chocolate Fluffernutter Brownies are best enjoyed slightly warm when the marshmallow topping is soft and gooey. For an extra indulgent dessert, warm an individual brownie for a few seconds before serving.

More Brownie Recipes

Check out some of my other favorite brownie recipes:

Fudgy Cottage Cheese Brownies

Salted Caramel Pumpkin Brownies

Vegan Date-Sweetened Brownies

Carnivore Cosmic Brownies

Talk soon,