Chocolate Tower Cake Recipe
Tall chocolate layers with chocolate cream and a glossy ganache pour.
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Ingredients
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Cake layers
Chocolate cream (filling and crumb coat)
Ganache pour
Assembly & finishing
Method
Cake layers
- 1
Preheat and prepare pans
Preheat oven to 350°F (175°C). Prepare three 8-inch round cake pans (or four 7-inch) by greasing and lining the bottoms with parchment; lightly dust with flour or cocoa powder.
- 2
Combine dry ingredients
In a large bowl, sift or whisk together the flour, granulated sugar, cocoa powder, baking powder, baking soda, and salt until evenly combined.
- 3
Combine wet ingredients
In a medium bowl, whisk eggs, buttermilk, vegetable oil, vanilla extract, and hot brewed coffee until smooth. The hot coffee intensifies chocolate flavor and produces a thin batter.
- 4
Make batter
Pour wet ingredients into dry ingredients and stir until just combined and no large streaks of flour remain. Batter will be fairly thin; do not overmix. Divide batter evenly among prepared pans (use scale or measure by volume).
- 5
Bake
Bake in the center of the oven for 25–32 minutes (adjust for pan size) or until a toothpick inserted into the center comes out with moist crumbs but not wet batter. Rotate pans halfway through if your oven bakes unevenly.
- 6
Cool
Cool cakes in pans on a wire rack for 10 minutes. Run a knife around edges, invert onto racks, remove parchment, and cool completely. For best stacking, chill layers until firm (30–60 minutes).
Chocolate cream (filling and crumb coat)
- 7
Prepare butter and cream cheese
Using a mixer, beat room‑temperature butter and cream cheese together on medium speed until smooth and silky, about 2–3 minutes.
- 8
- 9
Add liquids and finish
Add heavy cream, vanilla, and salt. Increase speed to medium-high and beat until light and fluffy, about 2–3 minutes. Adjust consistency: if too stiff, add 1–2 tablespoons extra cream; if too loose, add a little more powdered sugar. Reserve about 2 cups of the frosting for the crumb coat and extra filling; reserve 1 cup for final piping or decoration if desired.
Ganache pour
- 10
Chop chocolate
Place the finely chopped semisweet chocolate in a heatproof bowl so the chopped pieces are evenly sized for melting.
- 11
Heat cream
In a small saucepan, bring the heavy cream just to a simmer over medium heat (do not boil). Remove from heat immediately when small bubbles appear at the edges.
- 12
Combine and emulsify
Pour the hot cream over the chopped chocolate. Let sit 2 minutes to soften, then whisk slowly from center outward until smooth and glossy and no streaks remain. Whisk in corn syrup (if using) and butter until fully incorporated. If ganache is too thick to pour, microwave in 10‑second intervals, stirring between, until pourable but not hot.
- 13
Cool to pouring temperature
Let ganache cool until it reaches about 90–95°F (slightly warm to the touch) — thickened but still pourable so it will run down the sides slowly and set with a gloss.
Assembly & finishing
- 14
Level and optionally syrup
If cake layers domed, level each with a serrated knife or cake leveler to get even stacks. Brush each layer lightly with simple syrup if you want extra moisture, especially if cake will sit several hours.
- 15
First layer and filling
Place first cake layer on a cake board or turntable. Pipe or spread a generous 3/4 to 1 cup of the chocolate cream into the center, leaving a small margin at the edge so filling doesn't spill when stacking. Smooth to an even thickness.
- 16
Stack remaining layers
Place next cake layer on top, press gently to adhere, and repeat with remaining cake layers and filling. Reserve about 2 cups of chocolate cream for the crumb coat and final decoration.
- 17
Crumb coat
Apply a thin layer of chocolate cream over entire cake to lock in crumbs. Chill the cake in the refrigerator for 20–30 minutes until the crumb coat is firm.
- 18
Apply final coat (optional)
If you prefer a fully frosted finish under the ganache, apply a smooth final layer of chocolate cream and use a bench scraper to get sharp sides. Chill briefly until slightly firm but not rock hard.
- 19
Pour ganache
Place the chilled cake on a rack set over a tray to catch drips. Warm ganache if needed so it is pourable. Starting at the center, pour enough ganache to flood the top, then gently coax it to the edges with an offset spatula so it runs down the sides. Use more ganache if you want longer drips. Work quickly before ganache cools and thickens.
- 20
Smooth top and clean up
If necessary, smooth the top with an offset spatula. Allow ganache to set at room temperature for 30–60 minutes or refrigerate briefly (10–20 minutes) to speed setting. Wipe away any ganache that pooled on the cake board.
- 21
Decorate and serve
Pipe reserved chocolate cream for rosettes or borders if desired and scatter chocolate shavings/curls on top or around the base. For best texture, bring cake to room temperature 30–60 minutes before serving so ganache and crumb soften for easier slicing.