Mix the peeled and ground almonds with the sugar, lemon peel and 2 egg whites.
Knead the dough until it is smooth.
Roll out the dough with a bit of flour, making a cylinder about 3 cm thick.
Cut the cylinder into 2 cm pieces, so they are square.
Dip these squares into the egg mixed with pine nuts, pressing with your hands so they stick to the dough until we get small balls covered in pine nuts.
