Mocha Layer Cake with Chocolate-Rum Cream Filling is a rich and elegant dessert that combines the deep flavors of coffee and chocolate with a smooth, indulgent cream filling. The moist mocha cake layers are paired with a silky chocolate-rum cream, creating a sophisticated cake perfect for celebrations, dinner parties, or special occasions.

Mocha Layer Cake with Chocolate-Rum Cream Filling

Mocha Layer Cake with Chocolate-Rum Cream Filling is a rich dessert made with moist coffee-chocolate cake layers and a smooth chocolate-rum cream filling. Perfect for special occasions and chocolate lovers.

Introduction

Mocha Layer Cake is a classic dessert loved by coffee and chocolate enthusiasts. The cake itself has a soft, moist crumb with a subtle coffee flavor that enhances the richness of the chocolate. Between the layers sits a luscious chocolate-rum cream filling that adds depth and a hint of warmth.

This cake looks impressive but can be prepared step by step with simple baking techniques. The combination of mocha cake, creamy filling, and chocolate frosting makes every slice decadent and memorable.

Preparation Time

Prep Time: 30 minutes
Bake Time: 30–35 minutes
Assembly Time: 20 minutes
Total Time: About 1 hour 30 minutes
Servings: 10–12 slices

Ingredients

For the Mocha Cake Layers

2 cups all-purpose flour
¾ cup unsweetened cocoa powder
2 teaspoons baking powder
½ teaspoon baking soda
½ teaspoon salt
1 cup granulated sugar
½ cup brown sugar
3 large eggs
1 cup buttermilk
½ cup vegetable oil
1 tablespoon instant coffee dissolved in 2 tablespoons hot water
2 teaspoons vanilla extract
½ cup hot brewed coffee

For the Chocolate-Rum Cream Filling

1 cup heavy whipping cream
¾ cup semi-sweet chocolate chips
2 tablespoons butter
2 tablespoons dark rum
2 tablespoons powdered sugar
½ teaspoon vanilla extract

For the Chocolate Frosting

1 cup unsalted butter, softened
2 ½ cups powdered sugar
½ cup cocoa powder
3 tablespoons milk or cream
1 teaspoon vanilla extract

Optional garnish:

Chocolate shavings
Cocoa powder dusting
Coffee beans

Equipment Needed

Two 8-inch round cake pans
Mixing bowls
Electric mixer or whisk
Spatula
Saucepan
Cooling rack

Step-by-Step Directions

Step 1: Prepare the Oven and Pans

Preheat the oven to 175°C (350°F). Grease and line two 8-inch round cake pans with parchment paper.

Step 2: Mix the Dry Ingredients

In a large bowl, sift together the flour, cocoa powder, baking powder, baking soda, and salt. Stir until evenly combined.

Step 3: Prepare the Wet Ingredients

In another bowl, whisk the granulated sugar, brown sugar, and eggs until smooth.

Add the buttermilk, vegetable oil, vanilla extract, and dissolved instant coffee. Mix until well combined.

Step 4: Combine the Batter

Gradually add the dry ingredients to the wet mixture, stirring gently.

Slowly pour in the hot brewed coffee while mixing. The batter will be slightly thin, which helps create a moist cake.

Step 5: Bake the Cake Layers

Divide the batter evenly between the prepared cake pans.

Bake for 30–35 minutes or until a toothpick inserted in the center comes out clean.

Remove the cakes from the oven and allow them to cool in the pans for 10 minutes, then transfer to a cooling rack to cool completely.

Step 6: Prepare the Chocolate-Rum Cream Filling

In a small saucepan, heat the heavy cream over medium heat until it begins to simmer.

Pour the hot cream over the chocolate chips and butter in a bowl. Let it sit for 1–2 minutes, then stir until smooth.

Add the rum, powdered sugar, and vanilla extract. Mix well and allow the filling to cool until thick and spreadable.

Step 7: Make the Chocolate Frosting

In a mixing bowl, beat the softened butter until creamy.

Add powdered sugar and cocoa powder gradually while mixing.

Pour in the milk and vanilla extract. Continue beating until the frosting becomes smooth and fluffy.

Step 8: Assemble the Cake

Place one cake layer on a serving plate.

Spread the chocolate-rum cream filling evenly over the layer.

Place the second cake layer on top and gently press down.

Step 9: Frost the Cake

Spread the chocolate frosting over the top and sides of the cake using a spatula.

Smooth the frosting or create decorative swirls.

Step 10: Garnish and Serve

Decorate the cake with chocolate shavings, cocoa powder, or coffee beans if desired.

Let the cake rest for about 20 minutes before slicing so the layers set properly.

Serving Suggestions

Serve this mocha layer cake with:

Fresh whipped cream
A cup of hot coffee or espresso
Vanilla ice cream

The combination enhances the mocha and chocolate flavors.

Storage Tips

Refrigerator: Store the cake in an airtight container for up to 4 days.

Freezer: Wrap slices tightly and freeze for up to 1 month.

Before serving, allow refrigerated cake to sit at room temperature for about 20 minutes for the best texture.

Tips for the Best Mocha Layer Cake

Use freshly brewed coffee for the richest flavor.

Make sure the cake layers are completely cool before assembling to prevent the filling from melting.

If you prefer a stronger coffee flavor, add an extra teaspoon of instant coffee.

For a non-alcoholic version, replace the rum with coffee or vanilla extract.

Variations

Mocha Hazelnut Cake
Add finely chopped toasted hazelnuts between the layers.

Dark Chocolate Mocha Cake
Use dark cocoa powder and dark chocolate for a deeper flavor.

Espresso Cream Version
Replace the rum in the filling with espresso for a stronger coffee taste.

Conclusion

Mocha Layer Cake with Chocolate-Rum Cream Filling is a luxurious dessert that perfectly balances coffee and chocolate flavors. With its moist mocha cake layers and creamy chocolate-rum filling, this cake offers a rich and satisfying treat that is perfect for celebrations or whenever you want a truly special dessert.