For the cheese cookies grate Emmentaler. Mix butter, sour cream, 100 g Emmentaler, salt, caraway seeds and half of the flour. Then work in the rest of the flour.
Put the dough in the refrigerator for one hour. Roll out the dough to a thickness of half a centimeter. Preheat the oven to 180°C.
Cut out cookies in any shapes and place on a baking sheet lined with baking paper. Beat the egg and brush the cookies with it. Sprinkle the remaining Emmental on top.
Bake the cheese cookies until light brown.