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Best Ever Chocolate Cake
Prep Time
30 mins
Cook Time
35 mins
Total Time
3 hrs 5 mins

Best Ever Chocolate Cake is a rich chocolate cake layered with homemade chocolate mousse and finished off with chocolate buttercream.

Servings: 16
Calories: 685 kcal
Author: Sandra
  • Chocolate Cake
  • 2 cups all-purpose flour
  • 2 cups sugar
  • ¾ cup cocoa
  • 2 teaspoons baking powder
  • teaspoons baking soda
  • 1 teaspoon salt
  • 1 cup milk
  • ½ cup vegetable oil
  • 2 eggs
  • 2 teaspoons vanilla extract
  • 1 cup boiling water
  • Chocolate Mousse
  • 3 cups heavy cream divided
  • 12 ounces dark chocolate or semi-sweet chocolate chips
  • 2 teaspoons vanilla extract
  • 1/4 white sugar
  • Chocolate Frosting
  • 3/4 cups butter softened
  • 1/2 cup cocoa
  • 2 1/2 cups confectioner’s sugar
  • 3-4 tablespoons heavy cream milk or chocolate milk
  • 2 teaspoons vanilla extract
  1. Chocolate Cake
  2. Pre-heat oven to 350º F. Grease two 9-inch round cake pans with cooking spray and lightly dust with some flour or cocoa poweder
  3. In mixing bowl, I use my Kitchen Aid add flour, sugar, cocoa, baking powder, baking soda, and salt. Stir until well combined.
  4. Add milk, vegetable oil, eggs, and vanilla to flour mixture and mix together on medium speed until well mixed. Reduce the speed to low and add boiling water to the cake batter a little bit at a time. Once the water is all mixed in beat on high for about 1 minute.
  5. Evenly distribute cake batter between the prepared cake pans.
  6. Bake for 30-35 minutes, until a toothpick or cake tester inserted in the center comes out clean.
  7. Remove from the oven and allow to cool for about 10 minutes, remove from the pan and cool completely.
  8. **Don't worry if the cake falls in the center, it will still turn out just fine. I have this happen every once in a while, for instance when I forget to stick the cake in the oven and it sits on the counter for a while....not that I do that too much. (wink, wink)**
  9. Chocolate Mousse
  10. In a small sauce pan add the whipping cream and bring 1 cup to a boil, remove from heat and add in chocolate chips. Do not mix or stir them in, let the chocolate sit for 5 minutes. Stir until smooth. Let it cool to room temp, you do not want it warm or hot.
  11. In a large bowl, beat 2 cups chilled cream with 1/4 cup sugar. Beat until stiff peaks form. Fold whipped cream into chocolate mixture.
  12. Set in the refrigerator until ready to use to layer cakes.
  13. Cut each round cake in half. Place one layer on a cake plate or the serving plate you will be using. Add 1/3 of the chocolate mousse, you don't need to be exact just eyeball it.
  14. Allow the cake to chill in the refrigerator for 2-4 hours. Then frost the cake with the chocolate buttercream.
  15. Set back in the refrigerator until ready to cut, serve and devour.
  16. Chocolate Buttercream
  17. In a stand mixer cream together butter and cocoa powder until well-combined.
  18. Add powder sugar and milk to cocoa mixture by adding 1 cup of sugar followed by about a tablespoon of milk. After each addition has been combined, turn mixer onto a high speed for about a minute. Repeat until all sugar and milk have been added.
  19. Add vanilla extract and mix well.
  20. Tip to get the right consistency of frosting you may need to add additional milk or powdered sugar. If frosting appears too dry, add more milk, a tablespoon at a time until it reaches the right consistency. If it appears to wet and does not hold its form, add more confectioner’s sugar, a tablespoon at a time until it reaches the right consistency.
  21. Store the remaining cake in the refrigerator, if there are any leftovers.
Recipe Notes

Chocolate Cake & Chocolate Buttercream from Best Ever Chocolate Layer Cake Chocolate Mousse recipe from Death by Chocolate Mousse

Nutrition Facts
Best Ever Chocolate Cake
Amount Per Serving
Calories 685 Calories from Fat 387
% Daily Value*
Total Fat 43g 66%
Saturated Fat 27g 135%
Cholesterol 111mg 37%
Sodium 362mg 15%
Potassium 353mg 10%
Total Carbohydrates 73g 24%
Dietary Fiber 4g 16%
Sugars 52g
Protein 6g 12%
Vitamin A 20.6%
Vitamin C 0.3%
Calcium 9.9%
Iron 17.6%
* Percent Daily Values are based on a 2000 calorie diet.