Czech Gingerbread cookies: flour (800g), honey (240g), butter (250g), powdered sifted sugar (250-350g), 3 eggs + 1 for glaze, baking soda (1tsp), cocoa powder (2tbsp)... + gingerbread baking powder:1 sack and mix of gingerbread spices:1/2 sack (Czech specialities).... The frosting is from egg whites, powdered sugar and lemon juice