If you crave a sweet, gooey treat, you’re in the right place! These Marshmallow Fluff Brownies are rich, chocolatey, and topped with a fluffy layer that will make your taste buds dance. With simple ingredients and easy steps, you’ll whip up this delightful dessert in no time. Let’s dive into the recipe that promises to become your new favorite indulgence!
Why I Love This Recipe
- Decadent Flavor: The rich chocolate brownie base combined with the sweet marshmallow fluff creates a delightful contrast that is simply irresistible.
- Easy to Make: This recipe comes together quickly, making it perfect for a last-minute dessert or a fun baking activity with kids.
- Visually Appealing: The marbled effect of the marshmallow fluff makes these brownies not just delicious but also beautiful to serve at gatherings.
- Perfect for Sharing: With 12-16 servings, these brownies are great for parties, potlucks, or just sharing with friends and family.
Ingredients
Required Ingredients
– 1 cup unsalted butter
– 2 cups granulated sugar
– 4 large eggs
– 1 teaspoon vanilla extract
– 1 cup all-purpose flour
– 1 cup unsweetened cocoa powder
– 1/2 teaspoon baking powder
– 1/4 teaspoon salt
– 1 cup marshmallow fluff
– 1/2 cup mini chocolate chips
To make marshmallow fluff brownies, you need simple ingredients. First, the unsalted butter adds richness. Granulated sugar gives the brownies their sweet flavor. Eggs are key for binding the mix together. Vanilla extract adds a warm touch to the taste.
Next, all-purpose flour helps form the brownie structure. Unsweetened cocoa powder is essential for that deep chocolate flavor. Baking powder adds some lift, while salt balances the sweetness. The star ingredient is marshmallow fluff, which creates that gooey layer. Mini chocolate chips add bursts of chocolate in every bite.
Optional Toppings
– Additional chocolate chips
– Whipped cream
– Crushed nuts
While the brownies are delicious on their own, toppings can add fun. Extra chocolate chips can make them even richer. Whipped cream adds a light and airy touch. Crushed nuts provide a nice crunch and flavor contrast. You can mix and match these to fit your taste!

Step-by-Step Instructions
Prepping the Oven and Baking Pan
– Preheat oven to 350°F (175°C).
– Grease a 9×13-inch baking pan. Line it with parchment paper, leaving some overhang.
Mixing the Wet Ingredients
– In a large bowl, combine melted butter and granulated sugar. Whisk until smooth.
– Add eggs one at a time, mixing well after each addition. Stir in vanilla extract.
Integrating Dry Ingredients and Chocolate
– In another bowl, sift together flour, cocoa powder, baking powder, and salt.
– Gradually fold the dry mixture into the wet mixture until just combined.
– Stir in mini chocolate chips for extra chocolatey goodness.
Assembling the Brownies
– Pour half of the brownie batter into the prepared pan. Spread it evenly.
– Spoon dollops of marshmallow fluff over the batter. Use a spatula to swirl gently for a marbled look.
– Carefully spread the remaining brownie batter over the marshmallow fluff layer.
Baking Process
– Bake in the oven for 25-30 minutes. Test doneness by inserting a toothpick. It should come out with a few moist crumbs.
– Allow the brownies to cool completely in the pan on a wire rack. Once cool, lift them out using the parchment paper. Cut into squares and serve.
Tips & Tricks
Perfecting the Texture
For delicious brownies, you want to know the difference between fudgy and cakey. Fudgy brownies are dense and rich. To get this, add more fat and less flour. Use less baking powder. Cakey brownies are light and fluffy. For this, add more flour and use a little more baking powder. A great tip is to bake just until a toothpick comes out with a few moist crumbs. This helps to keep them soft and moist.
Enhancing Flavor
You can boost flavor in your brownies easily! Try adding a teaspoon of almond extract for a nutty twist. A pinch of cinnamon can add warm notes. You can also mix in a few tablespoons of peanut butter for a creamy layer. Experiment with different types of chocolate chips like dark or white chocolate. Each adds a unique taste.
Common Mistakes to Avoid
One big mistake is overmixing the batter. This can make the brownies tough. Mix just until the dry ingredients disappear. Another mistake is not checking your oven’s temperature. If it’s too hot or too cold, your brownies will bake wrong. Use an oven thermometer to be sure. Always follow the baking time closely for the best results.
Pro Tips
- Use Room Temperature Eggs: Ensure your eggs are at room temperature for better emulsification, creating a smoother batter.
- Don’t Overmix: Mix the batter until just combined to keep the brownies fudgy and chewy instead of cakey.
- Swirl with Care: When adding marshmallow fluff, use a gentle swirling motion to maintain distinct layers and avoid mixing too much.
- Cool Completely: Allow the brownies to cool completely before cutting to achieve clean, neat squares.
Variations
Gluten-Free Option
To make these brownies gluten-free, swap the all-purpose flour with a gluten-free blend. Look for a mix that includes xanthan gum. This will help keep the texture nice and chewy. Your brownies will be just as tasty and safe for those avoiding gluten.
Vegan Version
Want a vegan twist? Instead of eggs, use flax eggs. Mix one tablespoon of ground flaxseed with three tablespoons of water. Let it sit for five minutes until it thickens. Use non-dairy butter to replace the unsalted butter. This keeps your brownies rich and moist without any animal products.
Flavor Variations
You can easily change the flavor of your brownies. For a nutty touch, add half a cup of peanut butter to the batter. This will give a creamy and rich taste.
You can also play with the chocolate. Use dark chocolate chips or white chocolate for a different taste. Mixing in different chocolate types will create layers of flavor that everyone will love.
Storage Info
Room Temperature Storage
Store your brownies in an airtight container. They stay fresh for about three days. Keep them away from heat and light. If you like, you can place a piece of bread in the container. This helps keep the brownies soft.
Refrigeration Instructions
To keep brownies fresh in the fridge, wrap them tightly in plastic wrap. Then, place them in an airtight container. They will last up to a week this way. If you want a cold treat, try eating them straight from the fridge. They taste great chilled!
Freezing Brownies
Freezing brownies is simple. First, let them cool completely. Cut them into squares. Wrap each square in plastic wrap, then place them in a freezer bag. They can last for up to three months. To thaw, take them out and let them sit at room temperature for a few hours. You can also warm them in the microwave for a few seconds. Enjoy!
FAQs
Can I use other types of chocolate chips?
Yes, you can use different types of chocolate chips. Dark chocolate chips add richness. Milk chocolate chips give a sweet touch. You can also mix them for a fun flavor. Try white chocolate chips for a creamy twist. Each option changes the taste, so choose what you like best.
How long do leftovers last?
Leftover brownies stay fresh for about 3 to 4 days. Store them in an airtight container at room temperature. If you want them to last longer, keep them in the fridge for about a week. For the best taste, eat them within that time.
Can marshmallow fluff be substituted?
If you can’t find marshmallow fluff, try using cream cheese. Whip it until smooth, then add a bit of sugar. Another option is to use melted marshmallows. They will give a similar sweet and gooey texture. Just keep in mind that the flavor might change slightly.
You can make delicious brownies with simple ingredients and easy steps. Start with butter, sugar, eggs, vanilla, flour, cocoa powder, baking powder, and salt. Follow the steps to mix, layer, and bake, ensuring you test for doneness. Avoid common mistakes to achieve great texture. Explore variations, like gluten-free or vegan options, to suit your needs. Store your brownies properly to keep them fresh. With these tips, you can enjoy rich, tasty brownies anytime.