Step 1: Prepare the Cake Batter
- Preheat the Oven: Preheat your oven to 320°F (160°C). Prepare your cake pan by lining the bottom with parchment paper. Do not grease the sides as the cake needs to cling to the walls to rise properly.
- Mix Yolk Mixture: In a large bowl, combine the egg yolks and half of the sugar (3/8 cup). Whisk until the yolks are pale and fluffy. Mix in the oil and milk until well combined. Sift in the cake flour and cocoa powder, and add a pinch of salt. Whisk until the mixture is smooth.
- Make Meringue: In a separate clean bowl, use an electric mixer to beat the egg whites with the cream of tartar until foamy. Gradually add the remaining 3/8 cup of sugar while continuing to beat until stiff peaks form. This creates the meringue that will give the cake its light texture.
Step 2: Combine and Bake
- Fold Meringue into Yolk Mixture: Gently fold one-third of the meringue into the yolk mixture using a spatula until partially combined. Add the remaining meringue in two batches, folding carefully to keep the mixture as light as possible.
- Bake the Cake: Pour the batter into the prepared pan. Tap the pan lightly on the counter to remove any large air bubbles. Bake in the preheated oven for 50-60 minutes or until a toothpick inserted into the center comes out clean.
- Cool the Cake: Turn off the oven and open the oven door slightly to let the cake cool gradually. This prevents the cake from collapsing. After about 15-30 minutes, remove the cake from the oven and let it cool completely upside down on a cooling rack.
Step 3: Serve
- Unmold the Cake: Once completely cooled, run a thin knife around the edge of the pan to help release the cake. Carefully invert onto a serving plate.
- Dust with Powdered Sugar: Optionally, dust the top of the cake with powdered sugar or top with a light chocolate glaze or whipped cream.
Conclusion
Chocolate Cotton Cake is a sophisticated, fluffy dessert that pairs the intense flavor of chocolate with a light, airy texture that melts in your mouth. It’s an excellent choice for special occasions or as an everyday treat for those who appreciate a less sweet, more refined dessert. This cake is sure to impress with its delicate crumb and elegant appearance. Enjoy the process and the delicious outcome of your baking adventure!