Instructions
- 1
Mix all dry ingredients. Whisk all wet ingredients separately. Combine — batter will be very thin.
- 2
Bake in 3 greased 9-inch pans at 350°F for 33-35 minutes.
- 3
Make ganache: pour hot cream over chopped chocolate. Whisk smooth. Cool 2 hours until spreadable.
- 4
Make frosting: beat butter, cocoa and powdered sugar until fluffy.
- 5
Level cake layers. Spread ganache between each layer.
- 6
Apply chocolate frosting all over exterior, smooth sides.
- 7
Melt remaining ganache. Pour over top allowing it to drip dramatically over edges.
- 8
Top with chocolate curls or a dusting of cocoa powder.
Baker's Tip
Hot coffee in chocolate cake is not optional — it deepens and intensifies the chocolate flavor without tasting like coffee. The batter looks extremely thin and runny, which is correct and is exactly what makes the crumb so moist.
Frequently Asked Questions
Why does this recipe use hot coffee?
Hot coffee blooms the cocoa powder, releasing its full flavor compounds — the same way you bloom spices in oil. The coffee flavor itself disappears in baking but the chocolate flavor becomes dramatically deeper and more complex. It is the single most impactful technique in chocolate cake.
How do I make chocolate curls for decoration?
Melt chocolate and spread a thin layer on a marble slab or the back of a cold baking sheet. When just set but not hard, hold a bench scraper at 45 degrees and push forward — the chocolate curls up. Temperature is critical: too cold it shatters; too warm it smears.
My ganache is too firm to spread — how do I fix it?
Warm it briefly in the microwave in 10-second bursts, stirring between each, until just barely fluid. Or place the bowl over a pot of barely simmering water for 1-2 minutes, stirring constantly. Always cool ganache to room temperature before refrigerating — rapid cooling makes it grainy.
Can I make a dairy-free chocolate layer cake?
Yes — use oat milk or almond milk in place of buttermilk (add 1 tablespoon apple cider vinegar to sour it). Use coconut cream for the ganache — full-fat canned coconut cream whipped with 70% dark chocolate makes a spectacular ganache. Replace butter with vegan butter in the frosting.
About This Recipe
The ultimate chocolate cake — three layers of intensely dark moist chocolate sponge, sandwiched with thick chocolate ganache and glossy fudge frosting. A molten chocolate sauce drizzle over the top takes it into decadent territory.
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