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05th Jul 2015

Sunday Sweet Treat: Chocolate Coffee Layer Cake

This week's recipe is for a Chocolate Coffee Layer Cake

Rebecca McKnight

For our ‘Sweet Treat’ feature, we bring you a taste bud-tingling, saliva-inducing recipe every week.

Whether you simply want to put your baking skills to the test or fancy treating your colleagues to something tasty, this is where to come.

This week the recipe is for a Chocolate Coffee Layer Cake, courtesy of the Completely Delicious website…

Ingredients:

For the chocolate cake:

  • 65g unsweetened cocoa powder
  • 150g sour cream
  • 296 ml hot coffee or water
  • 320g all-purpose flour
  • 2 teaspoons baking powder
  • 1 teaspoon baking soda
  • ½ teaspoon salt
  • 280g unsalted butter, at room temperature
  • 215g brown sugar
  • 300g sugar
  • 3 large eggs
  • 1 tablespoon vanilla extract

For the coffee buttercream:

  • 300g sugar
  • 40g flour
  • 295ml whole milk
  • 80 ml heavy cream
  • 2 tablespoons instant espresso powder
  • 340g unsalted butter, at room temperature and cubed
  • 1 tablespoon vanilla extract

For the ganache:

  • 227g dark chocolate, chopped or use chips
  • 170g unsalted butter, cubed
  • 1 tablespoon light corn syrup

 

Method:

To make the chocolate cake:

1. Preheat oven to 160°C/325°F. Line two 8-inch round cake pans with parchment paper and grease with non-stick cooking spray or coat with butter and flour.

2. In a medium bowl, whisk together the cocoa, sour cream and hot coffee or water until smooth. Set aside to cool.

3. In a separate bowl, combine the flour, baking powder, baking soda, and salt.

4. In the bowl of stand mixer fitted with a paddle attachment, beat the butter and sugars together on medium high speed until very light and creamy, scraping the bowl down as necessary, about 5-7 minutes. Add the eggs one at a time, mixing after each. Add the vanilla.

5. Add the flour mixture in 3 additions, alternating with the cooled cocoa mixture, ending with the flour mixture. Mix until just combined. Divide the batter equally between the prepared cake pans.

6. Bake, rotating halfway through. until the center of the the cakes bounce back when touched and a toothpick inserted into the center comes out with a few moist crumbs, about 40-45 minutes. Let cool in the pans for 10 minutes, then remove to a wire rack to cool completely.

 

To make the coffee buttercream:

1. Whisk together the sugar, flour, milk, heavy cream and espresso powder in a medium saucepan. Set over medium heat and bring to a boil, stirring occasionally. Continue to cook, stirring constantly, until mixture is thickened, about 8-10 minutes.

2. Pour mixture through a mesh strainer into the bowl of a stand mixer fitted with a paddle attachment. Beat on medium high speed until cooled to room temperature, about 10 minutes.

3. Reduce the mixer speed to medium and add the cubed butter a tablespoon at a time, letting it become incorporated before adding the next tablespoon.

4. Once all the butter has been added, add the vanilla and beat on high speed until buttercream is thick and creamy. If buttercream is too soft, chill in the fridge for 10 minutes, then try beating again.

 

To assemble the cake:

1. If desired, cut the cooled cake layers in half, creating 4 layers. Place the first cake layer on a cake stand or plate. Cover with 3/4 cup of the buttercream and top with another cake layer. Repeat.

2. Cover the layer cake with a thin layer of buttercream to create a crumb coat. Chill cake for 10 minutes to set, then cover with remaining buttercream. Chill for at least 30 minutes.

 

To make the ganache:

1. Place the chopped chocolate, cubed butter, and corn syrup in a large heat-proof bowl set over a pan of barely simmering water. Stir as mixture melts. Once smooth, remove from heat and let cool for about 5 minutes.

2. Pour about ½ cup of the ganache over the top of the chilled cake, spreading it just to the edge without letting it spill over the sides. Chill 5 minutes. Pour another ½ cup of the ganache over the cake, this time pushing it over the sides and letting it drip down. Let cake set for 30 minutes at room temperature or 10 minutes in the fridge before serving.

3. If desired, top with chocolate covered coffee beans for decoration.

cake2