How to make
Sift the flour and powdered sugar. Add the egg yolks, butter and lemon peels. Gradually knead a smooth dough.
Wrap it in transparent plastic wrap and leave it for several hours (best for overnight) in the refrigerator. Roll out thus prepared dough into a 1/4 (5 mm) thick layer and cut out cookies of your desired shapes.
Bake in a 340°F (170 °C) oven until the edges turn pink and then stick them together with jam.
