Gooey Root Beer Float Brownies Recipe
Introduction
These Gooey Root Beer Float Brownies combine rich chocolate with the nostalgic fizz of root beer for a truly unique dessert. Soft, fudgy, and topped with a sweet glaze, they’re perfect for anyone craving a twist on classic brownies.

Ingredients
- 1 1/3 cups all-purpose flour
- 1 cup unsweetened cocoa powder
- 1 tsp kosher salt
- 12 oz semisweet chocolate chips
- 6 oz white chocolate chips
- 8 tbsp butter, cubed
- 6 eggs
- 1 cup granulated sugar
- 1 cup packed brown sugar
- 4 tsp pure vanilla extract
- 16 oz root beer
- 1/4 cup butter, softened (for glaze)
- 2 1/2 cups powdered sugar (for glaze)
- 1/4 cup root beer (for glaze)
- 1/2 tsp root beer extract (for glaze)
Instructions
- Step 1: Preheat your oven to 375°F. Grease a 9×13 inch baking dish with baking spray. In a medium bowl, whisk together the flour, cocoa powder, and kosher salt until well combined. Set aside.
- Step 2: In a microwave-safe bowl, combine semisweet chocolate chips, white chocolate chips, and cubed butter. Microwave in 20-30 second bursts, stirring between each, until melted and smooth. Let cool slightly.
- Step 3: In a large bowl, beat the eggs, granulated sugar, brown sugar, and vanilla extract until lighter in color and well combined. Slowly mix in the cooled chocolate mixture until smooth.
- Step 4: Alternately add the dry flour mixture and root beer to the chocolate batter, gently mixing after each addition just until combined. Pour the batter into the prepared baking dish. Bake for 35-40 minutes, until the center is just set. Cool completely.
- Step 5: For the glaze, beat softened butter, powdered sugar, root beer, and root beer extract until smooth. Spread evenly over cooled brownies. Chill for 10 minutes before slicing to let the glaze set.
Tips & Variations
- Use chilled root beer for a slightly fizzier batter and enhanced flavor.
- Try using vanilla or caramel ice cream when serving to mimic a classic root beer float experience.
- For a simpler topping, melt just white chocolate chips and drizzle over brownies instead of the glaze.
Storage
Store leftover brownies in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate for up to a week or freeze for up to 3 months. Reheat refrigerated brownies briefly in the microwave to soften before serving.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use diet or caffeine-free root beer in this recipe?
Yes, diet or caffeine-free root beer can be used without affecting the texture much, though the flavor might be slightly different depending on the brand.
Why does this recipe call for root beer in the batter?
Root beer adds a subtle, nostalgic flavor and extra moisture, making the brownies uniquely rich and gooey while enhancing the chocolate notes.
PrintGooey Root Beer Float Brownies Recipe
These Gooey Root Beer Float Brownies combine rich chocolate with the nostalgic flavor of root beer for a uniquely indulgent dessert. Featuring a fudgy brownie base infused with root beer and topped with a smooth root beer glaze, this recipe offers a fun twist on a classic treat that’s perfect for any occasion.
- Prep Time: 20 minutes
- Cook Time: 40 minutes
- Total Time: 1 hour
- Yield: 12 servings 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
Dry Ingredients
- 1 1/3 cups all-purpose flour
- 1 cup unsweetened cocoa powder
- 1 tsp kosher salt
Chocolate and Butter
- 12 oz semisweet chocolate chips
- 6 oz white chocolate chips
- 8 tbsp butter, cubed
Wet Ingredients
- 6 eggs
- 1 cup granulated sugar
- 1 cup packed brown sugar
- 4 tsp pure vanilla extract
- 16 oz root beer
Frosting/Glaze
- 1/4 cup butter, softened
- 2 1/2 cups powdered sugar
- 1/4 cup root beer
- 1/2 tsp root beer extract
Instructions
- Prepare Baking Dish and Dry Ingredients: Preheat your oven to 375°F. Grease a 9×13 inch baking dish with baking spray to prevent sticking. In a medium-sized bowl, combine the all-purpose flour, unsweetened cocoa powder, and kosher salt. Whisk thoroughly to ensure everything is evenly distributed, then set aside.
- Melt Chocolates and Butter: In a microwave-safe bowl, combine the semisweet chocolate chips, white chocolate chips, and cubed butter. Microwave in 20-30 second increments, stirring between each, until just melted and smooth. Stir thoroughly and let cool slightly to avoid scrambling the eggs when added.
- Mix Wet Ingredients and Blend with Chocolate: In a large bowl, beat the eggs, granulated sugar, brown sugar, and vanilla extract together with an electric mixer or whisk until well combined and slightly lighter in color. Slowly pour in the cooled melted chocolate mixture, mixing continuously to form a smooth batter.
- Combine Dry Ingredients and Root Beer, Bake Brownies: Alternately add the dry flour mixture and root beer to the wet chocolate batter, mixing gently after each addition until just incorporated—do not overmix. Pour the batter into the prepared baking dish and bake for 35-40 minutes or until the center is just set. Allow brownies to cool completely in the pan.
- Frost and Finish the Brownies: Once cooled, prepare the frosting by combining softened butter, powdered sugar, root beer, and root beer extract until smooth (or use a simple glaze with butter and root beer if you prefer). Spread evenly over the brownies, then chill for 10 minutes to set the topping before slicing and serving.
Notes
- Do not overmix the batter when combining dry ingredients and root beer to keep brownies tender and fudgy.
- Allow brownies to cool completely before frosting to prevent melting or sliding.
- Chilling the frosted brownies helps the topping set and allows cleaner slices.
- Microwave chocolates carefully in short intervals to avoid burning.
- You can substitute root beer extract if root beer is unavailable for a concentrated flavor.
Keywords: root beer float brownies, gooey brownies, chocolate brownies, root beer dessert, American desserts

