Preparation

• Preheat the oven to 180 ºC, ensuring it reaches this temperature before putting in the batter.
• Whip the whole eggs at room temperature with the icing sugar and almond flour using electric beaters until you obtain a frothy mixture that doubles its initial volume. Cover it with cling film and set it aside.
• In another large bowl, beat the egg whites with a pinch of salt until achieving firm peaks, meaning the peaks hold their shape without collapsing.
• Sift the wheat flour over the mixture of whole eggs and almond flour. Gently stir with a spatula, integrating the ingredients homogeneously.
• Fold in the whipped egg whites in three additions, stirring gently after each addition to maintain a light and fluffy texture.
• Finally, add the melted butter, ensuring it is at room temperature, and gently stir until fully incorporated.
• Place a sheet of parchment paper on a flat baking tray with low edges and pour the batter on top.
• Spread the batter with a long metal spatula to ensure it is even, maintaining the same thickness across the entire surface of the tray to guarantee uniform baking.
• Bake in the oven at 180 ºC for 10-12 minutes, until the surface of the batter is slightly golden and when pierced with a toothpick, it comes out clean.
• Remove the tray from the oven and let it cool for a few minutes.
• Carefully remove the sheet of dough from the tray and place it on the counter, being careful not to break it.
• Place a new piece of parchment paper over the sheet, quickly flip it over, and gently peel off the burnt baking paper.
• Allow the sheet to cool completely before handling it to avoid breaking.
• Once cooled, place the mold you will use to assemble the cake on top of the sheet and cut a layer of the sheet along the inside of the mold. Move the mold just to the edge of the previous cut and cut a second layer of the sheet.
• These two full layers of the sheet will be used for the base and the third layer of the cake. Set them aside, covered to prevent drying out.
• Utilizing the best pieces that remain, make several cuts to construct a second layer. Even if it's in pieces, since there will be filling both underneath and on top, it won't be noticeable. Set aside properly marked pieces to ensure a good assembly.