Begin by lining a baking sheet with a silicone baking mat for optimal results.
In a neutral and balanced tone, one should start by taking the bowl of a stand mixer. Then, attach the whisk attachment to it. Proceed to beat the egg whites until they turn foamy.
As the egg whites are beaten, gradually incorporate the white sugar. Ensure to maintain a continuous whisking motion until the mixture achieves a glossy, fluffy consistency and forms soft peaks.
In a different bowl, combine the confectioners' sugar and ground almonds by sifting them together. Next, swiftly incorporate this almond mixture into the beaten egg whites using approximately 30 strokes.
Firstly, take a plastic bag and cut a small corner off. Next, spoon a small amount of batter into the bag. Then, pipe a test disk onto the prepared baking sheet with an aim for a diameter of about 1 1/2 inches. Finally, if the disk holds a peak instead of flattening
Once the batter reaches the desired consistency, it can be spooned into a pastry bag equipped with a plain round tip. The batter should then be piped onto the baking sheet in circular shapes, ensuring ample spacing between each disk.
Allow the piped cookies to stand at room temperature for approximately 1 hour, until they form a hard skin on top.
Preheat your oven to 285 degrees F (140 degrees C) to ensure it's ready for the next step.
The cookies should be baked in the preheated oven for approximately 10 minutes. It is important to monitor them closely to ensure they are properly set without becoming overly browned.