Mashed potatoes with black truffles: Peel and Boil the potatoes well, it is very important that they be of good variety for cooking. Crease with good press card or blender added: butter, cream, salt and pepper to taste. Before serving to scatter with sliced truffles and grated may several different varieties. Garnish with trimmings of truffles, cut into appropriate shapes. You can add lemon slices, parsley, shredded Parmesan cheese, etc.