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Gooey Root Beer Float Brownies Recipe

4.4 from 79 reviews

Gooey Root Beer Float Brownies are a decadent twist on classic brownies, infusing the rich chocolate base with the nostalgic flavors of root beer. These brownies feature a moist, airy texture thanks to whipped eggs and sugars, combined with melted semisweet and white chocolate. Topped with a luscious root beer-infused frosting made from reduced root beer syrup and root beer extract, these brownies offer a unique and delightful dessert experience perfect for gatherings or any sweet craving.

Ingredients

Scale

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 and Sugar Ingredients

  • 6 eggs, room temperature
  • 1 cup granulated sugar
  • 1 cup packed brown sugar
  • 4 tsp pure vanilla extract
  • 16 oz root beer (divided: 1/4 cup for reduction, 16 oz for batter)

Frosting Ingredients

  • 1/4 cup butter, softened
  • 2 1/2 cups powdered sugar, sifted
  • Reduced root beer concentrate (from 1/4 cup root beer)
  • 1/2 tsp root beer extract

Instructions

  1. Prepare Mise en Place and Preheat: Preheat your oven to 375°F and grease a 9×13 inch baking dish with butter or cooking spray. Gather all ingredients and bring eggs to room temperature for better incorporation. Measure 1/4 cup of root beer and reduce it over medium heat in a small saucepan for about 5 minutes until syrupy. Let it cool completely; this concentrate will enhance the frosting flavor.
  2. Combine Dry Ingredients and Melt Chocolate Base: Whisk together the flour, cocoa powder, and kosher salt in one bowl until smooth. In another heatproof bowl, combine semisweet chocolate chips, white chocolate chips, and cubed butter. Melt gently using a double boiler or microwave in short intervals, stirring often until smooth. Cool the melted chocolate for about 5 minutes to prevent cooking the eggs later.
  3. Create the Egg and Sugar Base: In a large bowl, whisk room temperature eggs, granulated sugar, brown sugar, and vanilla extract vigorously for 2-3 minutes until thick, pale, and slightly fluffy. The mixture should almost form ribbons when lifted with a whisk. This step incorporates air for a lighter, gooey texture.
  4. Build the Brownie Batter: Gently stir the cooled chocolate mixture into the egg mixture until just combined to maintain airiness. Fold in the dry ingredient mixture with about 20 gentle motions. Pour in 16 oz of root beer and fold until just barely combined; some small flour streaks are fine. Take care not to overmix to keep the brownies tender.
  5. Bake the Brownies: Pour the batter evenly into the prepared baking dish. Bake for 35-40 minutes until the top sets but a toothpick inserted in the center shows a few moist crumbs. Remove from oven and allow brownies to cool completely in the pan to firm up for the signature gooey texture.
  6. Make the Root Beer Frosting: Beat softened butter using a mixer for 1 minute until creamy. Gradually add sifted powdered sugar, beating on low speed to prevent cloudiness after each addition. Once fully incorporated, add the cooled reduced root beer concentrate and root beer extract. Beat on medium speed for 1-2 minutes until the frosting is light, fluffy, and spreadable.
  7. Finish and Serve: Spread the frosting evenly over cooled brownies with a spatula. For clean, creamy slices, refrigerate the frosted brownies for at least 30 minutes or up to 2 hours. The chilled frosting sets well and enhances the root beer flavor, offering a deliciously unique brownie experience.

Notes

  • Using room temperature eggs helps achieve a lighter, airier batter.
  • Reducing root beer concentrates its flavor for a more intense frosting.
  • Gently folding the batter prevents tough brownies by preserving incorporated air.
  • Cooling brownies completely before frosting is essential for the gooey texture.
  • Chilling frosted brownies allows for cleaner slicing and enhances flavors.
  • Sifting powdered sugar before making frosting ensures a smooth texture without lumps.
  • Double boiler melting prevents chocolate from seizing and burning.

Keywords: root beer brownies, root beer float brownies, gooey brownies, chocolate brownies, unique dessert, root beer frosting, baked brownies