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Guinness Chocolate Brownies Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.7 from 11 reviews
  • Author: Lina
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Total Time: 45 minutes
  • Yield: 15 brownies 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Description

These Guinness Chocolate Brownies are incredibly moist, offering a perfect blend of cakey and fudgy textures. Made with rich cocoa and the deep flavors of Guinness stout beer, topped with a luscious chocolate ganache, these brownies are irresistible and perfect for any dessert occasion.


Ingredients

Scale

Guinness Brownies

  • 1/4 cup vegetable oil (60ml)
  • 3/4 cup Guinness Stout beer
  • 2 cups sugar (414g)
  • 1/2 tsp espresso powder (optional)
  • 1/2 tsp vanilla extract
  • 1/4 tsp salt
  • 1/4 cup unsalted butter, melted (56g)
  • 2 large eggs
  • 1 cup all-purpose flour (130g)
  • 2/3 cup Dutch-processed cocoa powder (76g)

Chocolate Topping

  • 5 oz semi-sweet chocolate chips (2/3 cup)
  • 2 tbsp unsalted butter
  • 2 tbsp Guinness Stout beer
  • 1/4 cup powdered sugar (29g)

Instructions

  1. Preheat Oven: Preheat your oven to 350°F (180°C). Grease a 9×9 inch square baking pan and line it with parchment paper, leaving some overhang to easily lift the brownies later.
  2. Mix Wet Ingredients: In a large mixing bowl, whisk together the vegetable oil, Guinness stout beer, sugar, espresso powder (if using), vanilla extract, and salt until well combined.
  3. Add Melted Butter: Stir the melted butter into the wet mixture and whisk until fully incorporated.
  4. Add Eggs: Add the eggs one at a time, whisking well after each addition to ensure a smooth batter.
  5. Combine Dry Ingredients: Gently whisk in the all-purpose flour and Dutch-processed cocoa powder just until the batter is combined, careful not to overmix.
  6. Pour Batter and Bake: Pour the batter into the prepared pan and spread it out evenly. Bake in the preheated oven for 30-35 minutes, or until a toothpick inserted in the center comes out with a few moist, sticky crumbs.
  7. Cool Brownies: Allow the brownies to cool completely in the pan to set properly.
  8. Prepare Chocolate Topping: Place the semi-sweet chocolate chips, unsalted butter, and Guinness stout beer in a microwave-safe bowl. Microwave for about 30 seconds until the Guinness is hot and the butter begins to melt, then whisk until smooth. If necessary, microwave for a few more seconds to achieve a silky texture.
  9. Add Powdered Sugar: Whisk in the powdered sugar until the ganache is smooth and fully combined.
  10. Top Brownies: Pour the chocolate ganache over the cooled brownies and spread into an even layer using a spatula.
  11. Final Cooling and Serving: Allow the ganache to set completely before using the parchment overhang to lift the brownies from the pan. Cut into 12-15 bars and serve.
  12. Storage: Store the brownies in an airtight container. They can be kept at room temperature for up to 2 days, then should be refrigerated because of the chocolate topping. Best consumed within 4-5 days.

Notes

  • Using parchment paper with overhang makes it easy to lift brownies from the pan without sticking.
  • Espresso powder is optional but enhances the deep chocolate flavor.
  • Be careful not to overmix the batter once the flour and cocoa powder are added to avoid dense brownies.
  • Microwave the ganache in short bursts to prevent overheating and seizing of chocolate.
  • Store brownies in a cool place and refrigerate after two days due to the ganache topping for freshness.