Go Back
Close up of a slice of Guinness Cake with Baileys Chocolate Espresso frosting.

Guinness Chocolate Cake With Baileys Irish Cream Frosting

Indulge on St. Patrick's Day with this rich and fudgy Guinness chocolate cake. Dark stout beer is reduced to create a rich flavor and topped with a Baileys Irish Cream frosting.
Print Recipe Pin Recipe
Prep Time 25 minutes
Cook Time 30 minutes
Total Time 55 minutes
Course: Dessert
Cuisine: American, Irish
Ingredients Method

Ingredients
  

  • 1 14.9 oz can of Guinness beer, reduced to ½ cup
  • 1 cup all-purpose flour
  • 1 tsp baking powder
  • ½ tsp baking soda
  • ½ cup cocoa powder
  • ¼ teaspoon salt
  • 1 teaspoon espresso powder
  • ½ cup canola oil
  • ¾ cup granulated sugar
  • ⅓ cup sour cream
  • 2 large eggs
  • 2 tsp vanilla extract
  • ¼ cup buttermilk
Baileys Irish Cream Frosting
  • 6 tablespoon unsalted butter, softened
  • 1 cup powdered sugar
  • ¼ cup cocoa powder
  • 1 tsp espresso powder
  • 1 tsp vanilla
  • 3 tbsp Baileys Irish Cream
  • 1 tablespoon whole milk

Method
 

  1. Preheat the oven to 350 and prepare an 8x8 pan with parchment or grease. Set to the side.
  2. In a medium-sized bowl, combine the flour, baking powder, baking soda, cocoa powder, salt, and espresso powder. Set to the side.
  3. In a large bowl, mix together the oil, sour cream, eggs, and vanilla. Add in the buttermilk and mix to fully combine.
  4. Add the dry ingredients to the oil mixture whisking fully to combine. Add in beer and whisk until everything is smooth.
  5. Pour the cake into the prepared pan and bake for 25-30 minutes.
  6. While the cake is baking, make the frosting. Combine the butter and powdered sugar in the base of a stand mixer or in the bowl of a hand mixer on low. When the powdered sugar is mostly combined, add in the cocoa powder, espresso powder, Baileys, vanilla, and milk. Continue to mix until smooth.
  7. When the cake is done, take it out of the oven and let it fully cool. Frost the cake when it is fully cool and enjoy!