Save to Pinterest A decadent fusion dessert combining fudgy brownies, toasted marshmallows, and a creamy root beer float twist—a nostalgic campfire treat elevated for kitchen indulgence. Perfect for anyone seeking a creative spin on classic s’mores and soda floats.
I first tried making these on a rainy weekend to relive campfire memories at home, and my friends couldn’t stop raving about the marshmallow topping paired with a splash of root beer—it tasted like childhood in every bite.
Ingredients
- Brownie Layer: 1/2 cup (115 g) unsalted butter, melted, 1 cup (200 g) granulated sugar, 2 large eggs, 1 tsp vanilla extract, 1/3 cup (40 g) unsweetened cocoa powder, 1/2 cup (65 g) all-purpose flour, 1/4 tsp salt, 1/4 tsp baking powder
- Graham Cracker Base: 1 cup (100 g) graham cracker crumbs, 1/4 cup (60 g) unsalted butter, melted, 2 tbsp sugar
- Marshmallow & Float Topping: 1 1/2 cups (75 g) mini marshmallows, 1 cup (240 ml) vanilla ice cream, slightly softened, 1/2 cup (120 ml) root beer or cola, 2 oz (55 g) milk chocolate, chopped or chips
Instructions
- Prepare the Pan:
- Preheat oven to 350°F (175°C). Line an 8x8-inch (20x20 cm) baking pan with parchment paper, leaving an overhang for easy removal.
- Make Graham Cracker Crust:
- In a small bowl, combine graham cracker crumbs, melted butter, and sugar. Press evenly into the bottom of the prepared pan to form a crust.
- Mix Brownie Batter:
- In a medium bowl, mix melted butter and sugar. Whisk in eggs and vanilla until smooth. Sift in cocoa powder, flour, salt, and baking powder. Stir until just combined.
- Assemble and Bake:
- Pour brownie batter over the graham cracker base and smooth the top. Bake for 28–32 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
- Add Marshmallow Layer:
- Remove pan from oven and immediately sprinkle mini marshmallows evenly over the brownies. Return to oven for 3–4 minutes, until marshmallows are puffed and golden.
- Finish and Serve:
- Remove brownies and cool completely in the pan. Once cooled, drizzle melted chocolate over the marshmallow layer. Chill until set. Just before serving, cut into squares. Top each brownie with a scoop of vanilla ice cream and pour over a splash of root beer or cola to create a float effect. Serve immediately.
Save to Pinterest Sharing these brownies after a family movie night instantly brought everyone together around the table, trading stories about summer camp and making their own float toppings—sweet memories made even sweeter.
Required Tools
8x8-inch (20x20 cm) baking pan, mixing bowls, whisk, spatula, parchment paper, small saucepan or microwave for melting chocolate, ice cream scoop
Allergen Information
Contains: wheat (gluten), eggs, milk, and soy if using chocolate chips with soy lecithin. May contain traces of nuts; verify packaging for safety if allergies are present.
Nutritional Information
Per serving: 320 calories, 15 g total fat, 45 g carbohydrates, 3 g protein
Save to Pinterest These brownies are a true crowd-pleaser—serve fresh for maximum gooey goodness and a fun float experience in every bite.
Common Recipe Questions
- → What makes these brownies unique?
The combination of fudgy chocolate, graham cracker crust, toasted marshmallows, and root beer float topping creates a nostalgic dessert with rich flavors and textures.
- → Can I substitute root beer with other sodas?
Yes, cola works well as a substitute for root beer, offering a similar sweet and fizzy element to the float topping.
- → Is it necessary to use a kitchen torch for marshmallows?
A kitchen torch adds extra toastiness, but simply baking the marshmallows until golden delivers delicious results without special equipment.
- → How can I make these brownies richer?
Using dark chocolate chips for the topping enhances the overall depth and richness of the dessert.
- → What allergens are present in these brownies?
They contain wheat, eggs, milk, and possibly soy. Always check chocolate chip labels for added ingredients if allergies are a concern.
- → Can these brownies be served chilled?
Yes, they taste great at room temperature or slightly chilled, especially before adding ice cream and soda topping.