Ingredients
For the Joconde Sponge















For the Coffee Buttercream






For the Chocolate Ganache



For the Coffee Syrup






Instructions
Step 1
*Preheat your oven* to 220°C (425°F). Prepare two baking trays with parchment paper.
In a large bowl, whisk together *almond flour*, powdered sugar, and *all-purpose flour*. In a separate bowl, whisk the eggs until frothy. *Combine the dry ingredients with* the eggs, blending until smooth.
In another bowl, beat egg whites until soft peaks form, gradually adding granulated sugar until stiff peaks form. *Gently fold* the egg whites into the almond mixture. Stir in melted butter.
Spread the batter evenly over the prepared trays. Bake for 5-7 minutes *until lightly golden*. Let it cool completely before peeling off the parchment.
Step 2
*Beat* the softened butter until light and fluffy. Gradually add in powdered sugar, continuing to beat until incorporated.
Add the brewed coffee and beat until the buttercream is smooth and well-blended. *Set aside*. This will be the creamy layer in your cake.
Step 3
Heat the heavy cream in a saucepan until it just begins to simmer. Do not boil. Pour over chopped dark chocolate in a bowl, letting it sit for a minute.
*Stir gently* until the chocolate is fully melted and the mixture is smooth. Allow the ganache to cool slightly before using it on the cake.
Step 4
In a small saucepan, bring water and granulated sugar to a boil over medium heat. Once the sugar is dissolved, remove from heat and stir in instant coffee.
Let it cool and use this *fragrant syrup* to moisten the layers of your cake as you assemble it.
Step 5
Start with one layer of Joconde sponge, brushing it generously with coffee syrup. Spread an even layer of coffee buttercream.
Add another Joconde layer, repeat with syrup, and then spread the chocolate ganache. Repeat layers until complete, finishing with ganache on top.
*Chill in the refrigerator* for at least 2 hours to set layers completely. Slice and serve to experience the rich, delicate flavors of this exquisite cake.
Servings
**For a Sophisticated Tea-time:** Pair your slices with a steaming pot of Earl Grey or Jasmine tea. The floral notes of these teas complement the rich chocolate and coffee in the cake oh-so-perfectly. 🍵✨
**Feeling Adventurous?** Dive into savory figures and put a savory twist by adding a small cheese board on the side. Believe it or not, a light Brie or tangy Gorgonzola can highlight your cake's sweet notes. 🧀
**Party Ready:** Garnish each plate with edible gold leaf for that added touch of luxury, or toss a few colorful berries for a pop of freshness and color. 🍓🥂
Equipment
For achieving that ultimate smooth buttercream texture and fluffy batters, a stand mixer is a baker's best friend! If not, a handheld mixer will do the trick with a bit more elbow grease.


Use good quality pans to evenly bake your delicate sponge layers. Remember to line them with parchment paper for easy removal!
Perfect for leveling layers of buttercream and ganache. Aim for precision, but don't stress about perfection!



Variations
**Gluten-Free:** Simply swap the all-purpose flour for a gluten-free baking mix that measures cup-for-cup. Remember, sponge cakes should be light, so don't over-mix the batter. 🌾🚫
**Vegan:** Choose a plant-based butter and nix the eggs by using aquafaba or a flaxseed mixture. Ensure your chocolate and coffee are both dairy-free for an indulgence everyone can enjoy. 🍰💚
Faq
- What's the best way to store an opera cake?
Store it in an airtight container in the refrigerator for up to 3 days. Let it come to room temperature before serving for the best texture experience!
- Can I freeze the cake layers?
Absolutely! Freeze them wrapped tightly in plastic wrap, then foil for up to a month. Thaw at room temperature before using them in your cake assembly.
- How do I keep my ganache from splitting?
Ensure your cream and chocolate are at similar temperatures. Stir gently and stop just as it combines to avoid overmixing, which can cause splitting.
- Should buttercream be whipped or smooth?
For opera cake, a silky smooth buttercream works best. Keep mixing until it's light and airy but still creamy.
- How do I get clean layers when cutting the cake?
Use a sharp, warm knife (dip it in hot water and wipe before each cut) to slice through the cake for those impressive, defined layers.
- How important is ingredient temperature?
Very! Use room temperature ingredients unless otherwise stated. This ensures even mixing and baking.