Decadent Chocolate Brownie Cake
This Decadent Chocolate Brownie Cake is rich, fudgy, and deeply chocolatey with a soft, moist crumb. Made with cocoa, hot coffee, and a silky dark chocolate ganache, it delivers bakery-level indulgence in every bite. Perfect for celebrations, dinner parties, or whenever you need a true chocolate fix.
Equipment
- 2 × 9-inch round cake pans
- Mixing bowls (1 large, 1 medium for ganache)
- Whisk (or electric hand mixer for smoother batter)
- Measuring cups and measuring spoons
- Sifter (optional, but helps keep cocoa and flour lump-free)
- Rubber spatula (for scraping down the bowl and folding batter)
- Saucepan (for heating cream for ganache)
- Heatproof bowl (for melting chocolate with hot cream)
- Cooling rack (important so the cakes cool evenly and don’t get soggy)
- Offset spatula or knife (for spreading ganache smoothly)
Ingredients
Cake
- 1 ¾ cups all-purpose flour
- ¾ cup unsweetened cocoa powder (Dutch-processed preferred)
- 2 cups granulated sugar
- 1 ½ tsp baking powder
- 1 ½ tsp baking soda
- 1 tsp salt
- 2 large eggs
- 1 cup buttermilk (or milk + 1 tbsp vinegar, rested 5 min)
- ½ cup vegetable oil
- 2 tsp vanilla extract
- 1 cup coffee hot (or boiling water for non-coffee option)
Ganache Icing
- 2 cups heavy cream
- 16 oz semi-sweet chocolate or dark chocolate, finely chopped
- 2 - 3 tbsp butter unsalted, optional, for shine and richness
- 1 tsp vanilla extract optional
Instructions
Bake the Cake
- Preheat oven to 350°F (175°C). Grease and line two 9-inch round cake pans with parchment paper.
- In a large bowl, whisk together flour, cocoa powder, sugar, baking powder, baking soda, and salt.
- Add eggs, buttermilk, oil, and vanilla extract. Mix until smooth and fully combined.
- Slowly pour in hot coffee and mix carefully. The batter will be thin—this is expected.
- Divide batter evenly between prepared pans.
- Bake for 35–45 minutes, or until a toothpick inserted in the center comes out clean.
- Allow cakes to cool in pans for 10 minutes, then transfer to a wire rack to cool completely.
Make the Ganache
- Heat heavy cream in a saucepan until it just begins to simmer (do not boil).
- Pour hot cream over chopped chocolate in a heatproof bowl. Let sit for 2–3 minutes.
- Stir until smooth, glossy, and fully combined.
- Mix in butter and vanilla if using.
- Let ganache cool until thickened and spreadable (about 20–30 minutes at room temperature or 10–15 minutes chilled, stirring occasionally).
Assemble the Cake
- Place one cake layer on a serving plate.
- Spread a generous layer of ganache evenly on top.
Add the second cake layer.
- Cover the top and sides with remaining ganache.
- Decorate as desired with chocolate curls, berries, sprinkles, or a pinch of sea salt flakes.
For the best decadent chocolate brownie cake texture, make sure your eggs, buttermilk, and oil are at room temperature before mixing. It helps the batter emulsify properly, giving you a smoother mix and a more even, moist chocolate cake crumb.And don’t rush the ganache — letting it cool slowly until thick and spreadable is what gives you that rich, glossy finish that makes this cake look bakery-level.
Notes
- This decadent chocolate brownie cake recipe has a thin batter after adding hot coffee — this is completely normal and key for a moist, fudgy chocolate cake texture. Do not add extra flour.
- Hot coffee enhances the cocoa and gives a deeper rich chocolate flavour cake, but does not taste like coffee. You can substitute with hot water for a milder version.
- Always cool cake layers completely before frosting with ganache or whipped cream. Warm cake will cause frosting to melt and slide, affecting the final chocolate layer cake structure.
- The chocolate ganache icing thickens as it cools. Stir occasionally for a smooth, glossy finish and perfect spreadable consistency for layering and frosting.
- For a lighter dessert option, this can be served as a simple chocolate brownie-style cake without layering, finished with a light ganache drizzle or dusting of cocoa powder.
- For a more indulgent bakery-style finish, increase the ganache for a fully frosted rich chocolate layer cake recipe with thick filling and smooth coating.
- Optional swap: whipped cream frosting (whipping cream) can be used instead of ganache for a lighter, airy topping that balances the richness of the chocolate cake.
- This homemade chocolate cake recipe from scratch tastes even better the next day as the chocolate flavour deepens and the crumb becomes even more moist and fudgy.
Nutrition
Serving: 1gCalories: 673kcalCarbohydrates: 72gProtein: 7gFat: 41gSaturated Fat: 21gPolyunsaturated Fat: 7gMonounsaturated Fat: 11gTrans Fat: 0.2gCholesterol: 54mgSodium: 436mgPotassium: 393mgFiber: 6gSugar: 50gVitamin A: 693IUVitamin C: 0.2mgCalcium: 113mgIron: 4mg
Tried this recipe?Let us know how it was!