Prepare to transform your dessert experience with an irresistible, protein-enhanced version of a beloved classic: the **Protein S’mores Brownies**. We’ve taken Fit Foodie’s popular protein brownies and infused them with the nostalgic magic of a campfire s’more. Imagine a rich, fudgy brownie base, generously crowned with perfectly melted marshmallows, crunchy graham cracker pieces, and delectable chocolate chips. It’s a harmonious blend of indulgence and nutrition, bringing the joy of summer campfires straight to your home.
What Makes These Brownies So Protein-Rich and Delicious?
The secret to the nutritional boost in these decadent brownies lies in a clever ingredient swap. Instead of traditional cocoa powder, we incorporate a full half cup of high-quality chocolate protein powder directly into the batter. This not only enhances the protein content significantly but also contributes to the brownies’ incredibly fudgy and chewy texture. This smart substitution ensures that every bite is not only satisfyingly sweet but also provides a healthy dose of protein, making them an ideal treat for active lifestyles or anyone looking for a more wholesome dessert option.

Why You’ll Adore This Protein S’mores Brownie Recipe ⤵️
Experience the Iconic Taste of Summer, Any Time
S’mores represent more than just a dessert; they embody the spirit of carefree summer evenings spent around a glowing campfire. This recipe allows you to capture that irresistible combination of sweet, smoky, and chocolatey flavors without needing to venture outdoors. Whether you’re craving a taste of summer in the dead of winter or simply want to relive cherished memories, these protein s’mores brownies deliver. They’re a staple in my kitchen, alongside other favorites like our Peanut Butter Crunch S’mores Cookies and these refreshing Frozen Protein S’mores. You’ll quickly find yourself adding them to your regular baking rotation!
A Fun and Engaging Activity for All Ages
Baking is a fantastic way to bond with family, and this recipe is particularly appealing for involving children. Kids often gravitate towards s’mores, and they’ll love being part of the creation process. My son, Gus, particularly enjoys helping me sprinkle the delightful s’mores toppings – the mini marshmallows, chocolate chips, and crushed graham crackers – onto the brownie batter before it bakes. It’s a simple, mess-free task that encourages participation and makes the final treat even more special, as everyone gets to enjoy something they helped prepare.
Achieve the Perfect Chewy, Fudgy Brownie Texture
For many, the hallmark of a truly great brownie is its texture: perfectly chewy edges giving way to a rich, fudgy center. Despite the inclusion of protein powder, which can sometimes alter the texture of baked goods, this recipe consistently delivers that dream combination. The brownies are wonderfully dense, moist, and delightfully chewy, providing a satisfying mouthfeel that rivals any traditional brownie. It’s a testament to how thoughtfully balanced ingredients can create a healthier treat that sacrifices nothing in terms of taste or texture.
Expert Tips for Baking Flawless Protein S’mores Brownies
To ensure your Protein S’mores Brownies turn out perfectly every time, follow these professional tips and tricks. These small adjustments can make a big difference in achieving that ideal fudgy texture and irresistible s’mores topping:
Selecting the Best Baking Pan for Even Heat Distribution
The type of baking pan you use significantly impacts the final outcome of your brownies. For consistent, evenly baked brownies with that coveted fudgy texture, we strongly recommend using a **metal baking dish**. Unlike ceramic or glass, metal conducts heat more quickly and distributes it uniformly, preventing overcooked edges and an underbaked center. A standard 9×9-inch metal pan is ideal for this recipe. If you only have glass or ceramic, you might need to slightly reduce the oven temperature and increase baking time, but for the most reliable results, metal is key.
Choosing the Right Protein Powder: Whey is Key
The success of these protein brownies hinges on the right type of protein powder. For this recipe, **whey protein powder** is essential. I’ve found that Tera’s Whey chocolate protein powder provides an excellent flavor profile and blends seamlessly into the batter, contributing to the perfect texture. While other brands of chocolate whey protein should also work well, it’s important to note that this recipe has **not been tested with plant-based protein powders**. Plant-based alternatives often absorb liquids differently and can significantly alter the texture and moisture content of baked goods. For the best, most consistent results, stick to a high-quality whey protein.
Achieving Ultimate Gooeyness with Marshmallows
To truly capture the authentic s’mores experience, pay attention to how you add the marshmallows. While some mini marshmallows are included in the initial topping, a game-changer is to **add an extra sprinkle of mini marshmallows and chocolate chips immediately after the brownies come out of the oven**. The residual heat from the freshly baked brownies will gently melt these additional toppings, creating an extra layer of ooey-gooey goodness that sets beautifully as the brownies cool. This ensures every bite is packed with that delightful melted marshmallow stretch.
The Art of Not Overmixing
When combining your wet and dry ingredients, resist the urge to overmix. Overmixing develops the gluten in the flour, which can lead to tough, cake-like brownies rather than the desired dense and fudgy ones. Mix only until the ingredients are just combined and no streaks of dry flour remain. A few small lumps are perfectly acceptable and often indicate you’ve mixed just enough.
Knowing When Your Brownies Are Perfectly Done
Underbaking or overbaking can drastically change the texture of your brownies. To check for doneness, insert a clean toothpick into the center of the pan. If it comes out with moist crumbs attached (not wet batter), your brownies are ready. If the toothpick comes out completely clean, they might be slightly overbaked, which can result in a drier texture. Remember that brownies continue to cook and set as they cool, so removing them when they are still slightly moist in the center is often the key to achieving ultimate fudginess.


Expand Your S’mores Repertoire!
Peanut Butter Crunch S’mores Cookies
If your love for s’mores knows no bounds, you absolutely must try these crunchy peanut butter s’mores cookies. They offer a delightful textural contrast with a rich peanut butter flavor, combined with all the classic s’mores elements. These cookies are a perfect treat for any occasion and a guaranteed crowd-pleaser!
Optimal Storage for Fresh & Fudgy Protein S’mores Brownies
Proper storage is paramount to preserving the incredible taste and texture of your protein s’mores brownies. The most crucial step is to allow them to **cool completely** to room temperature before attempting to slice or store them. Cutting into warm brownies can lead to a messy presentation and trapping steam, which can make them soggy. Once fully cooled, slice your brownies into neat squares and transfer them to an airtight container. Stored at room temperature, they will remain wonderfully fresh and fudgy for **3-5 days**. For an extra burst of flavor and gooeyness, a quick 10-15 second warm-up in the microwave before serving can revive them beautifully.
Freezer Instructions for Long-Term Enjoyment
These protein s’mores brownies are excellent for meal prepping or simply ensuring you always have a delicious, healthy treat on hand. They freeze exceptionally well, maintaining their texture and flavor for an extended period. Once your brownies are completely cooled, slice them into individual portions. For optimal freshness and to prevent freezer burn, wrap each brownie tightly in plastic wrap, then place them in a freezer-safe container or a heavy-duty freezer bag. They can be stored in the freezer for **up to 3 months**. When you’re ready for a delightful indulgence, simply remove a brownie from the freezer and allow it to thaw at room temperature for about an hour, or gently warm it in the microwave until soft and gooey. You’ll be amazed at how fresh they taste!

Discover More Irresistible Brownie Recipes You’ll Love
If you’ve enjoyed these Protein S’mores Brownies and are looking for more ways to satisfy your sweet tooth with delicious, fudgy treats, explore some of our other favorite brownie creations. From healthier options to classic indulgences, there’s a brownie for every craving:
- **Flourless Peanut Butter Protein Brownies:** A fantastic gluten-free and protein-packed option, perfect for peanut butter enthusiasts seeking a healthier dessert.
- **Easy Fudgy Brownies:** Our foundational recipe for classic, consistently fudgy brownies that are simple to prepare and always a hit with family and friends.
- **Small Batch Thin Mint Brownies:** Ideal for when you crave a refreshing, minty chocolate treat without committing to a large batch.
- **Banana Bread Brownies:** A creative and incredibly moist fusion of two beloved baked goods, offering a unique flavor profile that’s both comforting and delightful.
- **Skillet Brownies:** Experience the ultimate warm, gooey brownie served straight from the skillet – a rustic and impressive dessert that’s perfect for sharing.
Protein S’mores Brownies: The Complete Recipe
These protein s’mores brownies ingeniously replace cocoa powder with protein powder, creating an astonishingly chewy and fudgy brownie base. Each square is then crowned with all the iconic s’mores elements: perfectly toasted marshmallows, crunchy graham cracker pieces, and rich melted chocolate. Prepare to savor a healthier dessert that makes no compromises on flavor or satisfying texture!
Print Recipe
Ingredients
For the Fudgy Brownie Batter
- ½ cup Tera’s Whey Chocolate Protein Powder*
- ½ cup all-purpose flour
- ½ teaspoon sea salt
- ½ cup melted unsalted butter
- ¾ cup maple syrup (or use brown sugar for a richer caramel note)
- 2 large eggs
- 1 tablespoon vanilla extract
- ½ cup semi-sweet chocolate chips
For the Classic S’mores Topping
- ½ cup mini marshmallows (plus extra for after baking, if desired)
- 1 graham cracker sheet, broken into small, irregular pieces
- ¼ cup semi-sweet chocolate chips
Step-by-Step Instructions
- Preheat your oven to 350℉ (175℃). Line a 9×9-inch metal baking pan with parchment paper, allowing an overhang on two sides to facilitate easy removal of the brownies later. Lightly spray the parchment paper with cooking spray to prevent sticking.
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In a large mixing bowl, combine the maple syrup (or brown sugar if using), melted unsalted butter, large eggs, and vanilla extract. Whisk these wet ingredients together thoroughly until the mixture is smooth and well incorporated.
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Add the chocolate protein powder, all-purpose flour, and sea salt to the wet mixture in the bowl. Stir gently with a spatula or wooden spoon until the dry ingredients are just combined with the wet. Be careful not to overmix; a few small lumps are perfectly fine and will lead to a fudgier brownie.
- In a separate small, microwave-safe bowl, melt ½ cup of semi-sweet chocolate chips. Microwave in short 20-second bursts, stirring vigorously after each interval, until the chocolate is smooth and fully melted. Allow it to cool slightly before the next step.
- Pour the slightly cooled melted chocolate into the brownie batter. Mix until the chocolate is thoroughly incorporated, creating a uniformly rich, dark chocolate base for your brownies.
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Transfer the prepared brownie batter into your lined baking dish, spreading it evenly with a spatula. Generously sprinkle half of the mini marshmallows, all of the broken graham cracker pieces, and half of the remaining chocolate chips over the top of the batter.
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Bake in the preheated oven for **10 minutes**. After this initial bake, carefully remove the pan and loosely cover it with aluminum foil (this prevents the marshmallows and graham crackers from burning). Return to the oven and bake for an additional **10-15 minutes**, or until a toothpick inserted into the center comes out with moist crumbs attached, but not wet batter. Total baking time will be approximately 20-25 minutes.
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Once baked, remove the brownies from the oven. Immediately sprinkle any desired extra mini marshmallows and chocolate chips over the hot surface; the residual heat will beautifully melt them. Allow the brownies to cool in the pan for at least **10 minutes** before using the parchment paper overhang to lift them out. Transfer to a wire rack and let them cool completely before slicing into squares. This ensures the cleanest cuts and the best fudgy texture.
Important Recipe Notes & Pro Tips
- Baking Dish Choice: For the most consistent baking and the desired fudgy texture, always use a metal baking dish rather than ceramic or glass.
- Batter Thickness: Don’t be alarmed if the brownie batter appears quite thick; this is intentional and contributes to the rich, dense texture. Avoid adding extra liquids to thin it out.
- Protein Powder Recommendation: This recipe was meticulously developed and tested using **Tera’s Whey Chocolate Protein Powder**. While other brands of whey protein powder should yield similar results, we have not tested with plant-based protein powders, which may affect the final texture and moisture.
- For Extra Gooey Marshmallows: To achieve an ultimate ooey-gooey s’mores experience, generously sprinkle additional mini marshmallows and chocolate chips onto the brownies immediately after taking them out of the oven. The lingering heat will melt them beautifully.
- Patience is Key for Cooling: Allowing your brownies to cool completely before slicing is crucial. This patience ensures clean, neat cuts and allows the fudgy interior to fully set, delivering the best possible texture.
Watch Our Step-by-Step Video Guide
Follow along with our visual guide to effortlessly create these amazing Protein S’mores Brownies in your own kitchen!
Nutrition Information (per serving)
- Calories: 328 kcal
- Carbohydrates: 36 g
- Protein: 7 g
- Fat: 17 g
- Fiber: 2 g
- Sugar: 24 g
Please note: Nutrition information provided is automatically calculated and should be considered an approximation. Nutritional values may vary based on specific brands and exact quantities of ingredients used.
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