Peel and slice the potatoes thinly and dry them well. Melt the pork fat in a large frying pan and soften the pork or bacon, cut into small strips or cubes. Then arrange the potatoes in circles on top, seasoning each layer. Cover with a large lid and allow to cook gently in their own steam for 20 minutes.
Meanwhile cut up the cheese into strips and when the potatoes are cooked, crush the