Zimtsterne (Cinnamon cookies, Christmas treat)

Ingredients for approximately 50 cookies (depending on the size of a single cookie):

Stir white of egg and salt in a bowl until it is real stiff.
Add confectioner's sugar, stir until ingredients are evenly distributed. Put 1 dl (0.4 cups) aside for the frosting.
Add cinnamon, kirsch (or lemon juice) and almonds, knead to a soft dough.
Roll out dough on a flat surface (it may be slightly covered with sugar), approximately 7 mm (0.3 inches) thick. Put out stars or other shapes and put them on a baking sheet covered with baking paper.
Let them rest for about 5 to 6 hours or over night in a dry place.
Carefully sweep the cookies with the frosting set aside in step 2.
Bake for about 3 to 5 minutes in the center of the pre-heated oven at 250 °C (480 °F).
Let cool completely before serving.