Pre-heat the oven to 180C fan-forced.
Lay the potatoes out in a single layer in the bottom of a baking dish.
Scatter the cheese on top of and in between the potatoes.
In a bowl, stir the cream, garlic and salt and pepper together then pour the mixture over the top of the potatoes.
Bake for 1 hour 30 minutes or until the top is golden and the potatoes are cooked though (to test, skewer a potato, if it goes through easily then they are cooked).