Guinness Stout Chocolate Brownies

Fudgy Guiness Stout brownies

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Prep: 15 mins
Cook: 30 mins
Total: 45 mins
Servings: 36 to 48 servings
Nutritional Guidelines (per serving)
121 Calories
6g Fat
14g Carbs
2g Protein
See Full Nutritional Guidelines Hide Full Nutritional Guidelines
Nutrition Facts
Servings: 36 to 48
Amount per serving
Calories 121
% Daily Value*
Total Fat 6g 8%
Saturated Fat 4g 18%
Cholesterol 24mg 8%
Sodium 58mg 3%
Total Carbohydrate 14g 5%
Dietary Fiber 1g 4%
Protein 2g
Calcium 23mg 2%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

The original version of these Guinness Stout brownies was developed in Ireland. The malt in the Guinness Stout beer intensifies the flavor of the chocolate in these delicious brownies.

The texture is an interesting combination of fudge, mousse, candy, and traditional brownies. Although they are decadent chocolate, they are surprisingly light due to the eggs. You won't taste the beer at all.

These brownies are great for St. Patrick's Day or any day. As a bonus, you won't be using the full bottle of beer, so you might just enjoy a tipple as they are baking.


  • Dry Ingredient Mixture:
  • 1 cup all-purpose flour
  • 3/4 cup unsweetened cocoa powder
  • 1/2 teaspoon salt
  • Chocolate Mixture:
  • 6 tablespoons butter (cut into cubes)
  • 8 ounces dark bittersweet chocolate (chopped; may substitute extra-dark chocolate chips)
  • 3/4 cup white chocolate chips
  • Eggs and Sugar Mixture:
  • 4 large eggs (at room temperature)
  • 1 cup granulated white sugar
  • Final Additions:
  • 1 cup/8 ounces Guinness Extra Stout beer (room temperature, no foam)
  • 1 cup semi-sweet chocolate chips

Steps to Make It

  1. Preheat the oven to 375 F. Line a 9-inch by 13-inch baking pan with nonstick foil.

  2. Dry Ingredient Mixture: In a medium bowl, whisk together flour, cocoa powder, and salt until evenly combined. Set aside.

  3. Chocolate Mixture: Melt butter, bittersweet chocolate, and white chocolate chips in a double-boiler over very low heat, stirring constantly until melted. Remove from heat.

  4. Mix the Eggs and Sugar: In a large mixing bowl, beat eggs and sugar on high speed until light and fluffy, about 3 minutes.

  5. Add melted chocolate mixture to the eggs and sugar mixture, beating until combined.

  6. Beat the reserved dry ingredient mixture into the melted chocolate mixture. Whisk in the Guinness Stout beer by hand. The batter may seem a bit thin.

  7. Pour the batter into the prepared baking pan. Drop semisweet chocolate chips evenly on top of batter (some will sink in).

  8. Bake 25 to 30 minutes (oven temperatures vary) on center rack in the oven, until a toothpick inserted in the center comes out clean.

  9. Let the brownies cool, uncovered, to room temperature.


  • The Guinness Stout beer should be at room temperature. This recipe uses less than a standard 12-ounce bottle of Guinness Stout beer. Pour the beer early so the foam can settle. Do not include the foam in the measurement. Either spoon off the foam or let it rest until the foam subsides. What you do with the rest of the bottle of beer is up to you. You could enjoy a quaff before or after your baking session.