01 -
Preheat oven to 180°C (350°F). Butter a 23x23 cm (9x9 inch) baking pan and line with parchment paper for easier removal.
02 -
In a medium bowl, lightly break up the egg whites with a fork. Add the almond extract and confectioner's sugar, mixing until combined (mixture will be lumpy). Gently fold in the sliced almonds, taking care not to break them. Set aside.
03 -
In a large mixing bowl, vigorously whisk together the granulated sugar, eggs, almond extract, vanilla extract, and salt until pale and slightly thickened, about 2 minutes.
04 -
Using a silicone spatula, gently fold the flour into the egg mixture. Then fold in the melted butter until the batter is smooth and homogeneous.
05 -
Pour the batter into the prepared pan. Distribute the almond topping evenly over the surface, using fingers to drop small portions across the batter before smoothing to the edges with an offset spatula.
06 -
Bake in the center of the oven for 28-32 minutes, until the top turns golden and a toothpick inserted in the center comes out without wet batter. The center may still be slightly soft. Avoid overbaking.
07 -
Allow the cake to cool for 15-20 minutes in the pan, then lift out using the parchment paper and transfer to a cooling rack to cool completely.
08 -
Just before serving, dust generously with confectioner's sugar. Optionally serve with whipped cream and fresh berries.