Brownie-Mallow Bars – Fudgy Chocolate Brownies Layered
Brownie-Mallow Bars combine a rich homemade brownie base with a thick layer of gooey marshmallows and a smooth chocolate frosting. The brownies provide a dense and fudgy foundation, while the marshmallows add sweetness and a soft texture. A creamy chocolate topping completes the dessert with extra richness and flavor. These bars are easy to prepare, make a large batch, and are perfect for sharing. Their beautiful layers and irresistible taste make them a favorite for any occasion. Every bite delivers a delicious blend of chocolate and marshmallow goodness.
Ingredients
For the Brownie Layer
- 1 cup unsalted butter, melted
- 2 cups granulated sugar
- 4 large eggs
- 1 tsp vanilla extract
- ⅔ cup unsweetened cocoa powder
- 1 cup all-purpose flour
- ½ tsp baking powder
- ½ tsp salt
For the Marshmallow Layer
- 4 cups miniature marshmallows
For the Chocolate Frosting
- ½ cup unsalted butter, softened
- ¼ cup milk
- ⅓ cup unsweetened cocoa powder
- 3 cups powdered sugar
- 1 tsp vanilla extract
Instructions
- Preheat the oven to 350°F (175°C). Grease or line a 9×13-inch baking pan with parchment paper.
- In a large bowl, whisk together melted butter and sugar. Add eggs and vanilla extract, mixing until smooth.
- Stir in cocoa powder, flour, baking powder, and salt until just combined.
- Spread the batter evenly into the prepared pan. Bake for 22–25 minutes or until a toothpick inserted near the center comes out with a few moist crumbs.
- Remove brownies from the oven and immediately sprinkle miniature marshmallows evenly over the top.
- Return the pan to the oven for 2–3 minutes until the marshmallows become soft and puffy.
- Remove from the oven and allow the bars to cool completely before frosting.
- Beat butter, milk, cocoa powder, powdered sugar, and vanilla extract until smooth and creamy.
- Spread the chocolate frosting evenly over the marshmallow layer.
- Cut into squares and serve.
Notes
- Use fresh marshmallows for the best texture.
- Do not overbake the brownies.
- Cool completely before frosting.
- High-quality cocoa powder enhances flavour.
- Line the pan for easy removal.
- Frosting spreads best at room temperature.
- Store in an airtight container.
- Refrigerate for firmer bars if desired.