Reese's Oreo Chocolate Beer Bars

Reese's Oreo Chocolate Beer Bars are stuffed with Reese's Oreos and topped with a flavorful beer icing. One bowl, easy to make and ready in under one hour.

Course Dessert
Cuisine American
Keyword Reese's Oreo Chocolate Beer Bars
Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes
Servings 9 bars
Calories 400 kcal
Author Catalina Castravet


Oreo Reese's Chocolate Bars:

  • 1/2 cup unsalted butter melted
  • 1 1/2 cups granulated sugar
  • 1 large egg room temperature
  • 1 teaspoon vanilla extract
  • 3/4 cup beer of choice
  • 1/4 cup vegetable oil
  • 1 1/2 cups all-purpose flour
  • 1 cup cocoa powder
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 16 Oreo Reese's

Beer Icing:

  • 1 cup powdered sugar
  • 2-3 tablespoons beer of choice


  1. Preheat oven to 325F.
  2. Add the butter and sugar to the bowl of a stand mixer and beat until well combined, about 1 minute. Add the egg and vanilla, beat until combined. Stir in the beer, and oil, I used canola oil.
  3. Using a spatula, stir in the flour, cocoa powder, baking soda, and salt until just combined.
  4. Pour 1/3 of the batter into a brownie pan that’s been greased or sprayed with baking spray. Top with the Oreos and the rest of the batter. Using a spatula level the top layer.
  5. Bake for 35-40 minutes or until a cake tester inserted into the center comes out with just a few crumbs.
  6. Remove from oven and allow cooling completely before icing.
  7. In a medium bowl mix powdered sugar and beer one tablespoons at a time, until well combined and no lumps are visible.
  8. Cut the cake into bars, drizzle with icing and chill until set.
Nutrition Facts
Reese's Oreo Chocolate Beer Bars
Amount Per Serving
Calories 400 Calories from Fat 99
% Daily Value*
Fat 11g17%
Saturated Fat 6g38%
Cholesterol 16mg5%
Sodium 274mg12%
Potassium 244mg7%
Carbohydrates 74g25%
Fiber 4g17%
Sugar 50g56%
Protein 5g10%
Vitamin A 85IU2%
Calcium 56mg6%
Iron 4.2mg23%
* Percent Daily Values are based on a 2000 calorie diet.