Get the oil in advance if it has been stored in a cool place. Rub the butter with powder, add the egg, mix.
Mix both types of flour, add cardamom. Flour - to the oil mixture, knead the dough, remove for half an hour in the refrigerator.
Form cookies: first roll into balls the size of a large walnut and lightly press them down. Bake at 180 degrees for 10-15 minutes.