Preheat the oven to 200 degrees C. Butter a baking tray.
In a bowl, combine flour, half the cheese, salt, butter and egg yolks to make a dough.
Roll out the dough to 1cm thick. Cut into strips with a sharp knife or pastry cutter. Lay the strips on the baking tray and sprinkle with remaining cheese and cayenne pepper. Bake 10 minutes.