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Perfect St. Patrick's Day Cake

Rated as 4.73 out of 5 Stars

"With Guinness® and Irish Cream, so rich and decadent, a delicious Irish treat for St. Patty's Day or any time of year!"
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1 h 45 m servings 579
Original recipe yields 16 servings (1 9-inch 2-layer cake with frosting)


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  1. Preheat oven to 350 degrees F (175 degrees C). Line 2 9-inch cake pans with parchment paper, and spray with cooking spray.
  2. Pour the beer into a saucepan, add the butter, and bring to a simmer over medium-low heat. Remove the pan from the heat, and whisk in the cocoa powder until the mixture is smooth. Allow the mixture to cool. In a bowl, beat the eggs and sour cream together until smooth with an electric mixer, and stir in the stout mixture to make a smooth, thick liquid.
  3. In a large bowl, mix together the flour, sugar, baking soda, and salt. Pour the stout mixture into the flour mixture, and gently combine with a spatula. Pour the batter into the prepared pans.
  4. Bake in the preheated oven until the cakes are set and a toothpick inserted into the center of a cake comes out clean, about 30 minutes. Remove and let cool in pans for 5 minutes before inverting the cakes onto wire racks to finish cooling.
  5. Mix together the confectioners' sugar, butter, and Irish cream liqueur until the mixture forms a smooth and spreadable frosting (add more sugar or liqueur as needed to create the desired consistency). Spread half the frosting on top of each cake.
  6. Place the chopped chocolate into a heatproof bowl. Bring cream to almost boiling in a small saucepan, and pour over the chocolate. Stir in the butter, and stir the mixture until the chocolate melts and the mixture is very smooth. Allow to cool until the mixture is pourable but not thin or overly runny, 10 to 15 minutes. Stack a cake gently on top of the other, frosting sides uppermost, and carefully drizzle the chocolate mixture over the cake, allowing decorative drips to run down the sides.


  • Partner Tip
  • Reynolds® parchment can be used for easier cleanup/removal from the pan.

Nutrition Facts

Per Serving: 579 calories; 30.5 73.2 4.9 91 380 Full nutrition

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  1. 151 Ratings

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Most helpful positive review

Who'd ever guess that a recipe for chocolate cake that uses Guinness would turn out to be the best darned chocolate cake I've ever tasted?? Who says you can't teach an old dog new tricks? From h...

Most helpful critical review

I thought this was a fairly easy recipe to follow but I skipped the chocolate drizzle part to save time. I'm not sure why but my cake was a bit dry which puzzled me....I will make this again and...

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Least positive

Who'd ever guess that a recipe for chocolate cake that uses Guinness would turn out to be the best darned chocolate cake I've ever tasted?? Who says you can't teach an old dog new tricks? From h...

I made this recipe into cupcakes and it was great. I filled each cupcake with the Bailey's buttercream and topped each with the chocolate ganache. They were a big hit!

I served this at a St. Patty's Day party and it was a HUGE hit!! Instead of using 2 9-inch cake pans, I used 2 8-9 inch square glass pans and it came out just right after 30 mins. Also, instea...

OMG! This is the best chocolate cake i have ever made or tasted. and it is easy. i modified the frosting to sub 3/4 cup cocoa for 1 cup of the powdered sugar. this made a great chocolate bai...

Good Flavor, Easy Preparation. The frosting needed to be spread a little thin to cover 2 layers and sides. But there was plenty of chocolate drizzle to have easily covered both layers. We pre...

This is a great recipe; very easy to make and delicious! I followed the recipe to the letter and it came out perfectly - DO BE SURE TO LINE YOUR BAKING PANS WITH PARCHMENT PAPER! In my enthusi...

Delicious! I did bake this in a 9"x13" baking pan and left it in the pan. Cooled it, then frosted and ganached it. Turned out perfect and went to my son's business for St. Patrick's Day. Eve...

Its rare that I review anything, but this one deserves it. When I made the cake itself, I accidentally left out half of the butter. It didn't need it as it came out awesome. As for the ganach...

Excellent! I lost my original recipe for a chocolate stout cake, and this one was the closest I could find to what I (mostly) remembered from my old recipe. I found the addition of the drizzle...