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Guinness Cupcakes with Baileys Frosting

Chocolate Guinness Cupcakes are so delicious. A simple moist chocolate cupcake made with Guinness and topped with a creamy Bailey's Frosting. Perfect for St. Patrick's Day dessert!
Course Dessert
Cuisine American
Keyword Baileys Buttercream, Guinness, Guinness cupcakes
Prep Time 15 minutes
Cook Time 25 minutes
Servings 12 cupcakes
Author Jen



  • 1/3 cup Cocoa Powder
  • 1 cup Sugar
  • 1 cup Flour
  • 1/2 tsp Baking Soda
  • 1/4 tsp Salt
  • 6 oz Guinness
  • 1/4 cup melted Butter
  • 1/2 tbsp Vanilla
  • 1 Eggs
  • 1/4 cup Sour Cream


  • 1/2 cup Butter
  • 4 cup Powdered Sugar
  • 4 tbsp Bailey's Irish Cream


  • Preheat oven to 350.
  • In a large bowl, combine cocoa, sugar, flour, baking soda and salt. Whisk to blend.
  • In another bowl, combine the Guinness, melted butter and vanilla. Make sure all ingredients are at room temperature, to avoid curdling
  • Add in eggs and sour cream. Beat until combined and smooth.
  • Gradually add dry ingredients into the wet mixture.
  • Line muffin pan with paper liners or grease to avoid sticking
  • Fill each about 3/4 full.
  • Bake for 20-25 minutes until toothpick inserted in middle comes out clean.
  • Allow to cool in pan for 5 minutes before transferring to cooling rack.
  • Cream butter until fluffy.
  • Slowly add powdered sugar while beating until blended and proper consistency.
  • Add Bailey's and beat to incorporate.
  • Transfer to piping bag and frost cupcakes.