Rich, gooey chocolate cake layered with lusciously sweet coconut filling and topped with chocolate frosting make this Mounds cake the definition of decadence overload.
Prep Time20 minutesmins
Cook Time30 minutesmins
Rest Time30 minutesmins
Total Time1 hourhr20 minutesmins
Course: Dessert
Cuisine: American
Keyword: Mounds Cake Recipe
Servings: 12
Calories: 923kcal
Ingredients
Chocolate Cake
2cupsall-purpose flour,spooned and leveled
¾cupunsweetened cocoa powder
1¾teaspoonsbaking powder
1¾teaspoonsbaking soda
1teaspoontable salt
2¼cupsgranulated sugar
1¼cupsbuttermilk
2¼teaspoonspure vanilla extract
⅔cupvegetable oil
3extra largeeggs,room temperature
1cupboiling water
Chocolate Frosting
1½cupssalted sweet cream butter
2teaspoonspure vanilla extract
¾cupunsweetened cocoa powder
4½cupspowdered sugar
½cupwhole milk
Coconut Filling
1½cupssweetened condensed milk
2teaspoonspure vanilla extract
½teaspoonsalt
4cupssweetened coconut flakes
Instructions
Preheat the oven to 350°F. Spray two 9-inch round cake pans with baker’s spray (Baker’s Joy or generic version).
Add the flour, cocoa powder, baking powder, baking soda, salt, and sugar to a large mixing bowl. Whisk to combine.
Whisk in the buttermilk, vanilla, and vegetable oil. Whisk just until combined.
Whisk in the eggs, one at a time, whisking well after each egg until no streaks remain.
Carefully whisk in the boiling water. The batter will be a bit thin, but it is supposed to be.
Divide the batter between the 2 cake pans. Bake for 30 to 35 minutes, or until a toothpick inserted comes away clean. Allow the cakes to cool completely.
Using a stand mixer or a large mixing bowl and a handheld mixer on medium-high speed, beat the butter for 1 to 1½ minutes until smooth.
Lower the mixer speed to medium-low and add the vanilla and cocoa powder. Mix just until combined.
Add the powdered sugar 1 cup at a time, beating well after each addition. Alternate between adding the powdered sugar and the milk. Beat well until the frosting is smooth.
Add the sweetened condensed milk, vanilla, and salt to a large mixing bowl. Whisk until smooth.
Stir in the coconut flakes until the coconut is completely coated.
Carefully remove the cakes from the pans. Use either a cake leveler or a serrated knife to slice the cakes in half horizontally.
Place the bottom layer of cake on a round cake board or a serving plate.
Use an offset spatula to carefully spread ⅓ of the coconut mixture over the surface of the bottom layer of the cake. Place the second layer of cake on top of the coconut layer and repeat the steps for the remaining layers. The very top layer of the cake will not have any coconut on it.
Lay the top layer of cake on top of the last layer of coconut. Spread a thin layer of frosting on the outside of the cake, smoothing it as you go. Once you have the first layer of frosting, apply a thicker layer of frosting over the sides and top of the cake. Chill the cake in the refrigerator until you are ready to slice and serve.
Notes
To help the cake to bake level and more evenly, I suggest using cake bands. Be sure to soak the bands in water before squeezing out the excess water and placing them around the outside of the cake pans.
Oven temperatures vary and may need to be recalibrated periodically to ensure they are accurate. Make sure to check your cake at the lower end of the recommended baking time.
Allowing the cake to cool before frosting is important as the frosting won’t spread well and will just melt if the cake is still warm.