Ingredients
Method
Step 1: Prepare the Baking Pan
- Start by preheating your oven to 350°F (177°C). Line a jelly roll pan (about 15x10 inches) with parchment paper and brush it lightly with oil. This step saves you from a potential stickiness disaster when you’re ready to roll.
Step 2: Create the Design Paste
- In a small bowl, combine the egg white, softened butter, cocoa powder, sugar, and flour. Whisk until you get a smooth texture. Then, using a piping bag or a ziplock bag with a corner snipped, create a design on your parchment paper. This step adds a beautiful touch to the cake’s surface.
Step 3: Bake the Design Paste
- Place the pan in the preheated oven for about 5 to 7 minutes or until dry. Keep an eye on it; we want it to hold a design, not to over-bake.
Step 4: Make the Chocolate Cake Batter
- In a large bowl, whisk the egg yolks with 3 tablespoons of sugar until thick and pale. Incorporate the oil and milk. Add the sifted cocoa and flour, mixing gently until combined. In another bowl, whip the egg whites with the cream of tartar until soft peaks form. Gradually add the remaining sugar, continuing to beat until stiff peaks form. Gently fold the egg whites into the chocolate mixture in three additions, retaining as much air as possible.
Step 5: Bake the Cake
- Pour the batter over the design paste in the baking pan and smooth it out. Take care to fill in any gaps and make it even. Bake for 10 to 12 minutes, until the cake springs back when touched.
Step 6: Cool and Roll
- Once baked, remove the cake from the oven and let it cool in the pan for about 5 minutes. Dust a clean kitchen towel with powdered sugar, then invert the cake onto it. Peel off the parchment paper, and carefully roll the cake with the towel. Allow it to cool until it’s completely set.
Step 7: Prepare the Chestnut Cream Filling
- Whip your cold heavy cream in a bowl until it holds soft peaks. In a separate small bowl, mix the chestnut paste with the powdered sugar and gelatin. Once combined, fold the chestnut mixture into the whipped cream gently, ensuring you keep that airy texture. You can also stir in optional flavors like cinnamon or amaretto at this stage.
Step 8: Fill and Roll the Cake
- Unroll the cooled cake carefully, spreading the chestnut cream evenly over the surface. Roll it back up gently without the towel this time. Wrap the rolled cake in plastic wrap and refrigerate it for at least four hours (or overnight) to let it set properly.
Step 9: Serve
- To serve, slice the cake roll and, if desired, top with extra whipped cream, chocolate shavings, or a light dusting of cocoa powder. Enjoy the wonderful layers as they blend together with each bite!
Notes
- Fresh Ingredients Matter: Always aim for high-quality cocoa powder and fresh eggs. These ingredients impact the taste significantly.
- Make Ahead: This cake roll can be made a day in advance. In fact, a little resting time lets the flavors meld beautifully.
- Don’t Rush the Cooling Process: Allow the cake to cool completely before rolling. This prevents it from cracking.
- Experiment with Fillings: Feel free to swap out the chestnut cream for other flavors like hazelnut or espresso cream if you want to give it your twist.
- Perfect Rolling Technique: Use a kitchen towel during the initial rolling stage. It's a game-changer for keeping the form intact.
