Carefully separate the egg whites from the yolks, then let the egg whites stand at room temperature for at least one hour.You can use a stand or a hand mixer in thepreparation of meringue, and with both mixers you will achieve the same result.
Beat together almonds, 1/2 cup superfine sugar, and the confectioners' sugar in a large bowl with a mixer. Then add the egg whites to another, large and deep bowl.
Start whipping the egg whites on low speed, gradually increasing the speed. When the egg whites become frothy, add the remaining 1/2 cup, super fine sugar. The time required for whipping is between 7 and 10 minutes.It is very important that the egg whites are well beaten to make the Dacquoise cake successful, so do not shorten the whipping time. When the meringue is ready, add the almond mixture, superfine sugar, and the confectioners' sugar and lightly combine the meringue with the mixture with a spatula.It's time to bake!
Preheat the oven to 130 degrees and line the baking tray with baking paper. Meanwhile, draw two circles with a diameter of 22 cm on one side of the baking paper. Turn the other side of the baking paper in a thin layer, coat with butter, and then sprinkle with all-purpose flour.
Pour the Almond Dacquoise mixture into a dressing bag, and shape the circles using the circles drawn on the paper. Flatten the surface of the Dacquoise cake with a spatula and sprinkle with almond flakes.
Put the pan in the oven preheated to 130 degrees and bake for 10 minutes. Then, reduce the power of the oven to 90 degrees and let it bake for 80 minutes. Don't open the oven door while Dacquoise cake is baking so that it does not crack.After 80 minutes of baking, turn off the oven and open the door slightly. It is best to leave the Dacquoise in the oven for a while to cool slightly before removing it from the oven.
Remove the cooled Dacquoise from the paper very carefully.