Indulge your taste buds with a decadent mocha layer cake filled with rich chocolate and a hint of rum. This luxurious dessert combines the bold flavors of coffee and chocolate, creating a harmonious blend that’s perfect for special occasions or simply treating yourself. The moist and tender mocha cake layers are complemented by a luscious chocolate rum filling, all enveloped in a silky mocha buttercream frosting. Whether you’re a chocolate lover, a coffee enthusiast, or both, this cake promises to deliver an unforgettable culinary experience that will delight your senses and leave you craving more.
Ingredients
For the Mocha Cake:
- 2 cups all-purpose flour
- 2 cups granulated sugar
- 3/4 cup unsweetened cocoa powder
- 2 tsp baking powder
- 1 1/2 tsp baking soda
- 1 tsp salt
- 2 large eggs
- 1 cup whole milk
- 1/2 cup vegetable oil
- 2 tsp vanilla extract
- 1 cup boiling water
- 2 tbsp instant coffee granules
For the Chocolate Rum Filling:
- 1 cup heavy cream
- 8 oz semi-sweet chocolate, finely chopped
- 2 tbsp unsalted butter
- 3 tbsp dark rum
For the Mocha Buttercream Frosting:
- 1 cup unsalted butter, softened
- 4 cups powdered sugar
- 1/2 cup unsweetened cocoa powder
- 1 tsp vanilla extract
- 1/4 cup strong brewed coffee, cooled
- 2 tbsp dark rum
Instructions
Making the Mocha Cake:
- Preheat your oven to 350°F (175°C). Grease and flour three 9-inch round cake pans.
- In a large bowl, sift together the flour, sugar, cocoa powder, baking powder, baking soda, and salt.
- Add the eggs, milk, oil, and vanilla extract. Beat on medium speed until well combined.
- Dissolve the instant coffee granules in the boiling water. Add this to the batter and mix on low speed until just combined. The batter will be thin.
- Divide the batter evenly among the prepared cake pans.
- Bake for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
- Cool the cakes in the pans for 10 minutes, then remove to wire racks to cool completely.
Making the Chocolate Rum Filling:
- In a small saucepan, heat the heavy cream over medium heat until it just begins to simmer.
- Place the chopped chocolate in a heatproof bowl. Pour the hot cream over the chocolate and let it sit for 5 minutes.
- Add the butter and stir until the chocolate and butter are completely melted and the mixture is smooth.
- Stir in the rum. Let the filling cool to room temperature, then refrigerate until it thickens to a spreadable consistency.
Making the Mocha Buttercream Frosting:
- In a large bowl, beat the butter on medium speed until creamy.
- Gradually add the powdered sugar and cocoa powder, beating on low speed until combined.
- Add the vanilla extract, brewed coffee, and rum. Beat on medium-high speed until the frosting is smooth and fluffy.
Assembling the Cake:
- Place one cake layer on a serving plate. Spread half of the chocolate rum filling over the top.
- Place the second cake layer on top and spread the remaining chocolate rum filling over it.
- Top with the third cake layer.
- Frost the entire cake with the mocha buttercream frosting.
Optional Decoration:
- Chocolate shavings or curls for garnish.
- Coffee beans dipped in chocolate for an extra touch.
Tips:
- Ensure all your ingredients are at room temperature before you start baking.
- If the chocolate rum filling is too firm, let it sit at room temperature for a few minutes before spreading it on the cake.
- For a stronger coffee flavor in the cake, you can increase the amount of instant coffee granules.
Enjoy your decadent mocha layer cake filled with chocolate and rum!
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