The Brownie Chocolate Cake with Vanilla Buttercream is a heavenly dessert that brings together the rich and fudgy goodness of brownies with a luscious coconut filling and a delightful vanilla buttercream. Topped with a velvety chocolate ganache and garnished with coconut and Ferrero chocolates, this cake is a celebration of flavors and textures that will delight any chocolate lover.
The history of brownies has already been mentioned in a previous response, but it’s worth noting that brownies have been a beloved dessert in the United States since their creation. The combination of a moist and dense texture with a deep chocolate flavor has made brownies a favorite treat for people of all ages.
The origin of coconut cakes and fillings can be traced back to regions where coconut trees are native, such as Southeast Asia and the Pacific Islands. Coconut has been a staple ingredient in various desserts in these regions for centuries.
As for the vanilla buttercream, buttercream itself dates back to the 1800s, where it was primarily made with butter and sugar. Vanilla, as an essential flavoring, pairs wonderfully with chocolate and adds a touch of sweetness to balance the richness.
The combination of brownies, coconut filling, and vanilla buttercream creates a sumptuous and satisfying cake that has earned a place on many dessert tables and celebration events.
INGREDIENTS
For the Brownie Layers:
- 2 packages of Brownie Mix
- 4 eggs
- ½ cup of water
- ¾ cup vegetable oil
For the Coconut Filling:
- 1 cup heavy cream
- 1 cup granulated sugar
- 3 egg yolks
- 5 tbsp. unsalted butter, cut into small pieces
- 1 cup pecans, ground
- 1½ cups unsweetened coconut
For the Vanilla Buttercream:
- 1 cup unsalted butter/2 sticks, softened
- 4 cups confectioner’s sugar
- 1 vanilla bean
- 3 tbsp. heavy cream
- Pinch of salt
For the Chocolate Ganache:
- 8 ounces semisweet chocolate, chopped
- 2 tbsp. light corn syrup
- 3 tablespoons unsalted butter
- 1 cup heavy cream
To Assemble the Cake:
- Ferrero chocolates for decoration
INSTRUCTIONS
For the Brownie Layers:
- Preheat the oven to 350 degrees Fahrenheit (175 degrees Celsius) for one package of brownie mix and 325 degrees Fahrenheit (163 degrees Celsius) for the other package. Grease the bottom of three 8-inch round pans with shortening or cooking spray.
- In a large bowl, mix the brownie mixes, eggs, vegetable oil, and water until well blended. Spread the brownie batter evenly into the greased pans and bake immediately.
- The brownies are done when a toothpick inserted 1 inch from the edge of the pan comes out clean, which should take about 25 minutes. Cool the brownies completely in the pan on a wire rack before assembling the cake.
For the Coconut Filling:
- Place the butter, ground pecans, and unsweetened coconut in a large bowl and set it aside.
- In a medium saucepan over low/medium heat, stir together the heavy cream, granulated sugar, and egg yolks until the mixture thickens and coats the back of a spoon (reaching 180 degrees F). Immediately pour the hot custard into the pecan-coconut mixture and stir until the butter is melted. Let the filling cool completely to room temperature before topping the brownie layers.
For the Vanilla Buttercream:
- In the bowl of a stand mixer fitted with the paddle attachment, place the softened butter and cream it on medium speed until smooth, which should take about 2-3 minutes.
- Add the confectioner’s sugar, ½ cup at a time, until well combined.
- Scrape the seeds from the vanilla bean and add them, along with a pinch of salt, to the buttercream mixture. Continue to mix until everything is well incorporated.
- Add the heavy cream, one tablespoon at a time, until the frosting reaches the preferred consistency.
For the Chocolate Ganache:
- Place the chopped semisweet chocolate, corn syrup, and butter in a medium bowl.
- In a saucepan over medium heat, bring the heavy cream to a boil. Remove from heat and pour it over the chocolate. Stir well until the chocolate is melted and well combined with the heavy cream. Let the ganache cool to room temperature.
To Assemble the Cake:
- Remove the brownie layers from the pans. Place the first cake layer on a cake plate.
- Spread a generous amount of vanilla buttercream over the first cake layer and then add ¾ cup of the coconut filling over the cake layer, making sure to reach the edges.
- Place another cake layer on top and repeat the process with all three layers, including the top one.
- Ice the sides of the cake with the chocolate ganache, add the remaining coconut topping to the middle, and create a border with Ferrero chocolates for decoration.
Enjoy this delightful Brownie Chocolate Cake with Vanilla Buttercream, a perfect treat for celebrations or any time you want to indulge in a decadent and scrumptious dessert!



