Peel the potatoes and slice them about ¼" (0.5cm) thick. Cut the bacon into thin strips, grate (shred) the cheese, peel and crush (mince) the garlic and chop the parsley.
Heat the fat in a frying pan and fry the bacon strips until they are crisp and golden. Arrange potato slices so that they form a layer at the bottom of a greased oven-proof dish. Sprinkle over some grated cheese and a few cooked bacon strips. Add a twist of freshly-ground pepper. Continue making further layers until you have used all the potato, bacon and cheese then sprinkle the top with the garlic and parsley.
Cover the dish with a lid and cook in the middle of a preheated moderate oven Mk 5 - 375ºF - 190ºC for about 45 - 50 minutes. Remove from the oven, pour over the cream, cover and return to the oven for a further 5 minutes then serve immediately.