Irish Car Bomb Cake


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Irish Car Bomb Cake

  • Author: Melissa
  • Total Time: 10 minute
  • Yield: 12 slices 1x


Absolutely, hands-down the best St. Patrick’s day treat. All the rich chocolate flavors with a boozy twist.



2 cups all-purpose flour

2 cup sugar

¾ cup cocoa powder

1 ½ teaspoons baking soda

½ teaspoon salt

1 cup butter (two sticks) room temperature

2/3 cup sour cream

2 large eggs

1 cup stout beer, room temperature


12 ounces butter (1 ½ sticks) room temperature

4 ounces shortening

67 cups powdered sugar, sifted

¼ cup Irish cream whiskey

12 tablespoons heavy cream

Pinch of salt

Chocolate filling

10 ounces bittersweet chocolate

¾ cup heavy cream

2 tablespoons butter

4 tablespoon Irish whisky



Thoroughly combine flour, sugar, cocoa powder, baking soda and salt in mixing bowl.

Add butter and mix using an electric mixer until mixture is crumbly

Add eggs and ½ of the stout beer, mix until a paste forms.

Add the remaining ingredients and mix until combined.

Divide cake batter between two 9” round prepared cake pans.

Bake at 350˚ for 25-35 minutes or until the top of cake “bounces back” when lightly pressed.


Beat butter with an electric mixer on low until very smooth.

Add shortening and continue to mix, occasionally scraping down sides of bowl, until very smooth

Add half of powdered sugar and mix on low speed until smooth, occasionally scraping down sides of bowl
Add half of the Irish cream whiskey, mix until smooth
Add remaining Irish cream whiskey, heavy cream and salt. Mix until smooth.

Chocolate filling:

Place all ingredients in a heavy bottom sauce pan over very low heat.

Stir until melted.




Be sure cake is completely cool before icing.

I slice each cake into 2 layers, then using a pastry bag make a boarder on top of each layer then add the filling. This way the filling doesn’t leak out of the sides when icing the outside of the cake.


  • Prep Time: 30 mins.
  • Cook Time: 25-35 mins
  • Category: Dessert
  • Method: Hi Ratio

Keywords: St. Patrick's day Irish Car Bomb Cake

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