Put the sugar, butter and vanilla in a bowl, massaging until you get a frothy cream in which the yolks are added.
Mix again until the yolks are mixed and add flour + baking powder and salt.
Mix everything and start making small balls of dough that we will give through the beaten egg white and then through the walnut kernel.
Prepare the tray of the stove with baking paper and place each ball obtained, which, with your finger, we make a hole in the middle in which we will put a jam, shit or almonds (according to preference)
The oven will be preheated where we will insert the baking tray on the middle stage of the oven for 15 minutes. Enjoy!