Preheat oven to 200C (400F).

Heat cream, garlic and 2 cups water in a large saucepan until simmering. Season well.

Grease a very large baking or oven proof dish with olive oil. Layer potatoes evenly.

Pour hot cream mixture over the spuds then scatter with cheese.

Cover tightly with foil and bake covered for 1/2 hour.

Remove the foil and bake for another 1/2 hour or until the potatoes are tender and the cheese is golden brown.