Chocolate Guinness Cake

Lauren Caris Short

By Lauren Caris Short

Updated

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5 from 1 vote

Satisfy your sweet cravings on St. Patrick’s Day or any day with this Chocolate Guinness Cake – a delectable dessert that brings together the bold flavors of Guinness Stout and the sumptuousness of chocolate.

Chocolate Guinness Cake.

Far from tasting like a pint of beer, this cake is deliciously dark malty, and super moist. Topped with a simple layer of cream cheese frosting, this is the easiest cake in the world to make and SO delicious!

This really is the easiest cake to make. It’s literally a one-bowl mix, straight to the cake pan, cover it in a frosting kind of situation. No cutting, no leveling, no fancy decoration. Just a good cake. And since Guinness has been vegan-friendly since 2016, there’s no concern there.

The mixture itself is extremely wet, almost like water, but don’t be alarmed, it will set as it cooks. The batter consistency creates a beautifully light and fluffy cake that is just addictive.

close-up image of a cake being delicately sliced, with the slices being lifted by a hand using a cake slicer

Why You’ll Love This Recipe

  • Easy to Prepare. This cake is almost a one-bowl recipe that is easy to prepare and bakes effortlessly.
  • Unique Cake Flavor. The Guinness Draught gives this cake a moist malty flavor that’s worth trying.
  • St. Patrick’s Day Cake. This cake is a fun way to celebrate Irish beer.
close-up photo of a woman holding a plate with a slice of chocolate Guinness cake on it, along with a fork

How to Make Chocolate Guinness Cake

Enjoy a rich moist chocolate cake with a Guinness twist. The full recipe is at the end of the blog post.

Key Ingredients 

  • Guinness Draught. Gives this cake a malty flavor.
  • Cocoa Powder. Adds a rich chocolate taste.
  • Buttermilk. Adds a tangy flavor to this cake.
  • All-Purpose Flour. This flour keeps this cake light and tender.
  • Cream Cheese. The tanginess of the cream cheese icing works perfectly with this moist chocolate cake.
  • Granulated Sugar. Adds the perfect sweetness to this cake.

Step-by-Step Instructions

1. Preheat the Oven. Line a round cake pan with parchment paper and preheat the oven.

2. Combine the Wet Ingredients. In a saucepan, add the Guinness and butter and heat until completely melted. Remove from heat and whisk in the granulated sugar and cocoa powder. Add the eggs, vanilla, and buttermilk.

3. Combine the Dry and Wet Ingredients. In a stand mixer, combine the remaining dry ingredients and add the Guinness mixture until well combined.

4. Bake the Cake. Pour the batter into the cake pan and bake until a toothpick can be inserted and come out clean. Place the baked cake on a cooling rack to cool.

collage of two images: on the left, a chocolate cake on a table with parchment paper; on the right, a cake with cream cheese frosting and a dusting of cocoa powder

5. Make the Frosting. Beat the butter and powdered sugar. Add the cream cheese and beat on high speed. Frost the cooled cake and dust it with cocoa powder before serving.

image of a hand using a strainer to sprinkle cocoa powder onto a chocolate cake covered with cream cheese frosting

Recipe Tips, Variations, and Substitutions

  • Out of buttermilk? Make a DIY version of buttermilk by using the same amount of regular milk mixed with 1 teaspoon of lemon juice. Let it sit for a minute before using it.
  • Guinness Draught and Extra Stout can both be used. Guinness Draught is preferred because it is richer and creamier.

Storage Recommendations

Store this cake in an airtight container in the fridge for up to five days or in the freezer for up to three months.

Try These Other Cake Recipes

Guinness Chocolate Cake Recipe.
Print Recipe
5 from 1 vote

Chocolate Guinness Cake

Satisfy your sweet cravings on St. Patrick's Day or any day with this Chocolate Guinness Cake – a delectable dessert that brings together the bold flavors of Guinness Stout and the sumptuousness of chocolate.
Prep Time20 minutes
Cook Time45 minutes
Total Time1 hour 5 minutes
Course: Dessert
Cuisine: Irish
Diet: Vegetarian
Servings: 12 cake
Calories: 518kcal

Equipment

  • 1 round cake pan 9-inch
  • 1 saucepan
  • 1 stand mixer
  • 1 cooling rack
  • 1 offset spatula

Ingredients

Cake

  • 8.5 oz Guinness Stout
  • 1 1/8 cups butter
  • 3/4 cup cocoa powder
  • 1 3/4 cups granulated sugar
  • 2 eggs
  • 1 tsp vanilla extract
  • 2/3 cup buttermilk
  • 2 1/4 cups all-purpose flour
  • 2 tsp baking soda
  • ½ tsp baking powder

Frosting

  • 1/4 cups butter
  • 1 1/2 cups powdered sugar
  • 4.4 oz. cream cheese full-fat
  • cocoa powder for dusting (optional)

Instructions

  • Line a 9-inch round cake pan with parchment paper and preheat the oven to 350°F (175°C).
  • In a saucepan, add the Guinness and butter and heat on low heat until the butter is completely melted. Take the pan off the heat and whisk in the granulated sugar and cocoa powder to cool the mixture down. Add the eggs, vanilla, and buttermilk and whisk until you have a smooth batter.
  • In a stand mixer, combine the remaining dry ingredients and add the Guinness mixture until everything is smooth and well combined.
  • Pour the batter into the cake pan and bake for 40-45 minutes, or until a toothpick can be inserted and come out clean. Place the baked cake on a cooling rack to cool.
  • When the cake is fully cool, make the frosting. To make the frosting, beat the butter and powdered sugar in a stand mixer until you have a fine crumb mixture. Add the cream cheese and beat on high speed for 2-3 minutes. Using an offset spatula, frost the cooled cake and dust it with cocoa powder before serving.

Notes

If you do not have buttermilk, substitute the same amount of regular milk with 1 teaspoon of lemon juice added. 
Let it sit for a minute before serving.

Nutrition

Calories: 518kcal | Carbohydrates: 67g | Protein: 6g | Fat: 27g | Saturated Fat: 16g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Trans Fat: 1g | Cholesterol: 95mg | Sodium: 473mg | Potassium: 156mg | Fiber: 3g | Sugar: 45g | Vitamin A: 851IU | Calcium: 59mg | Iron: 2mg

Recipe from The Hummingbird Bakery’s book “Cake Days.”

Images by Lauren Caris Short.

5 from 1 vote (1 rating without comment)

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0 thoughts on “Chocolate Guinness Cake”

  1. Is this cake firm enough to cover with sugerpaste? Want to shape into a rugby ball and cover in sugerpaste then decorate

    Reply
    • Hi Davina, I don’t think it’s the ideal texture as it’s a very moist, soft cake, don’t think it would do too well as a rugby ball then fondant covered. Something like a madeira cake would work better for that. Maybe you could make this recipe into little cupcakes for the size and just reduce the cooking time?

    • Hi Sara, yes definitely just don’t frost it until you want to use it, otherwise the frosting will go a funny consistency when it defrosts. You can still make the frosting ahead and freeze it in an airtight container, but once it comes to room temperature give it another quick whip up before you frost the cake.

      Probably best to let the cake come to room temperature overnight to avoid any dry or sogginess. Hope it goes well!