A rich, moist, and intensely chocolatey layer cake perfect for all occasions
Indulge in this decadent Black Chocolate Cake, made with deep Dutch-processed cocoa, moist buttermilk layers, and a luscious dark chocolate buttercream. The addition of hot coffee intensifies the chocolate flavor, making it a favorite for birthdays, holidays, or anytime you crave a bold and elegant dessert.
π« Cake Overview
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Type: Layer cake
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Servings: 10–12
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Skill level: Intermediate
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Baking Time: 30–35 minutes
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Total Time: ~1.5 hours (including cooling and frosting)
π§Ύ Ingredients
πΉ For the Cake:
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1¾ cups all-purpose flour
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1 cup unsweetened cocoa powder (Dutch-processed preferred for deep color)
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2 cups granulated sugar
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1½ teaspoons baking powder
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1½ teaspoons baking soda
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1 teaspoon salt
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2 large eggs
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1 cup buttermilk (or 1 cup milk + 1 tablespoon vinegar, mixed and rested for 5 minutes)
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½ cup vegetable oil
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2 teaspoons vanilla extract
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1 cup boiling water or hot coffee (coffee enhances chocolate flavor)
πΉ For the Dark Chocolate Frosting:
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1 cup unsalted butter, softened
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3½ cups powdered sugar
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½ cup unsweetened cocoa powder
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½ teaspoon salt
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2 teaspoons vanilla extract
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¼ cup heavy cream (plus more as needed)
π©π³ Instructions
β Step 1: Prepare the Cake Batter
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Preheat the oven to 350°F (175°C). Grease and flour two 9-inch round cake pans or line with parchment paper.
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Sift dry ingredients into a large mixing bowl: flour, cocoa powder, sugar, baking powder, baking soda, and salt.
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Add wet ingredients to the dry mix: eggs, buttermilk, oil, and vanilla. Beat on medium speed until smooth and combined.
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Incorporate boiling liquid: Slowly pour in the hot water or coffee. Mix carefully—the batter will be thin, which is expected.
β Step 2: Bake the Cakes
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Divide the batter evenly between the prepared pans.
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Bake for 30–35 minutes, or until a toothpick inserted in the center comes out clean.
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Let the cakes cool in the pans for 10 minutes, then transfer to a wire rack to cool completely before frosting.
β Step 3: Make the Frosting
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Beat softened butter in a large bowl until creamy and light in texture.
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Gradually sift in the powdered sugar and cocoa powder, mixing on low speed until incorporated.
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Add the salt, vanilla extract, and heavy cream. Increase to high speed and beat until the frosting is fluffy and spreadable.
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Adjust with more cream (for softer) or powdered sugar (for firmer) to achieve your desired consistency.
β Step 4: Assemble the Cake
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Place one cake layer on a serving plate or cake board. Spread a generous amount of frosting on top.
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Add the second cake layer and frost the top and sides with the remaining frosting.
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For a decorative finish, use a spatula to create swirls or pipe patterns on the surface.
π½οΈ Serving & Storage Tips
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Garnish with chocolate shavings, berries, or edible gold dust for an elegant presentation.
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Serve at room temperature with a glass of cold milk, coffee, or red wine.
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Store covered at room temperature for up to 2 days, or refrigerate for up to 5 days. Bring to room temperature before serving for the best texture.
Final Thoughts
This Black Chocolate Cake delivers a deep, sophisticated flavor with moist layers and a smooth, rich frosting. Whether served at a formal celebration or enjoyed as a weeknight indulgence, this cake is sure to become a go-to favorite for chocolate lovers.