Indulgent, sophisticated, and absolutely irresistible, this White Chocolate Mocha Cake is the ultimate treat for coffee and chocolate lovers. It features soft espresso-infused chocolate cake layers, a silky white chocolate ganache frosting, and optional espresso syrup for an extra punch. Each bite delivers the perfect balance of rich mocha flavor and creamy white chocolate decadence.
Ingredients
For the cake:
- 1 3/4 cups (220g) all-purpose flour
- 3/4 cup (65g) unsweetened cocoa powder
- 1 1/2 teaspoons baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1 cup (200g) granulated sugar
- 1/2 cup (100g) packed brown sugar
- 1/2 cup (120ml) vegetable oil
- 2 large eggs
- 1 teaspoon vanilla extract
- 2 teaspoons instant espresso powder (or 1 shot cooled espresso)
- 1 cup (240ml) buttermilk
- 1/2 cup (120ml) hot water
For the white chocolate ganache frosting:
- 12 oz (340g) white chocolate, finely chopped
- 1 cup (240ml) heavy cream
- Pinch of salt
- Optional: 1/2 tsp vanilla or almond extract
Optional espresso syrup (for soaking):
- 1/4 cup (60ml) brewed espresso or strong coffee
- 1 tablespoon granulated sugar
Instructions
Make the cake:
- Preheat oven to 350°F (175°C). Grease and line two 8-inch round cake pans.
- In a large bowl, whisk together flour, cocoa powder, baking powder, baking soda, and salt.
- In another bowl, whisk together both sugars, oil, eggs, vanilla, and espresso powder until smooth.
- Add buttermilk and dry ingredients alternately to the wet mixture, starting and ending with dry. Mix just until combined.
- Stir in hot water until smooth. The batter will be thin.
- Divide between prepared pans and bake for 30–35 minutes, or until a toothpick comes out clean. Cool completely.
Make the ganache frosting:
- Heat cream in a saucepan until steaming (not boiling). Pour over chopped white chocolate in a bowl.
- Let sit for 3 minutes, then stir until smooth. Add salt and optional extract. Chill for 1–2 hours or until spreadable.
Optional espresso syrup:
Mix brewed espresso with sugar until dissolved. Brush over cooled cake layers before assembling.
Assemble the cake:
- Level cake layers if needed.
- If using syrup, brush each layer lightly.
- Spread ganache between layers and over the top and sides.
- Garnish with white chocolate curls, espresso beans, or a dusting of cocoa powder.
Tips
- Use high-quality white chocolate (not chips) for the ganache—it melts and sets better.
- Chill the ganache until it reaches a whipped consistency for easier spreading.
- Don’t overmix the batter to keep the cake tender.
- Add a shot of espresso for deeper mocha flavor in the batter or frosting.
Variations and Substitutions
- Gluten-free: Use a 1:1 gluten-free flour blend.
- Cupcakes: Bake in a lined muffin tin for 18–20 minutes.
- Mocha buttercream option: Swap ganache for espresso buttercream or whipped mascarpone frosting.
- Extra indulgent: Fill with a layer of espresso whipped cream or chocolate mousse.
- Decorate with chocolate shards or coffee-flavored macarons.
FAQs
Can I make this cake ahead of time?
Yes! The cake layers can be made 1–2 days in advance and stored wrapped at room temp. Assemble the day you serve for best texture.
Can I freeze this cake?
Absolutely. Freeze unfrosted layers or the whole frosted cake (wrapped well) for up to 2 months.
How strong is the coffee flavor?
It’s balanced—not overpowering. You can increase or reduce the espresso to taste.
Can I use espresso chips in the batter?
Yes! They’ll add extra texture and bold flavor.
Serving Suggestions
- Serve with a cappuccino, cold brew, or Irish coffee.
- Add a scoop of vanilla bean ice cream for contrast.
- Garnish with white chocolate curls, espresso beans, or a light cocoa dusting.
- Serve slices chilled or at room temperature—both are delicious.
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