Or Pommes dauphinoise (for the sophisticated.)
This is the culinary equivalent of a big cosy cardigan. It's proper cosy comfort food which originated in Lyon near the Alps and was designed for fending off cold nights on snowy mountains.
4 baking potatoes (peeled and VERY thinly sliced.)
600ml double cream (or 300ml cream and 300ml milk)
2 bushes sprigs of rosemary
1 clove of garlic (thinly sliced)
salt and pepper
Parboil the potatoes and garlic for 15 minutes in the cream and milk with the rosemary sprigs and anchovies. Stir occasionally to make sure nothing sticks to the bottom and season with salt and pepper.
Transfer everything (minus the rosemary stalks) to a greased casserole dish and cook uncovered for 45 minutes in a hot oven (220)
Serve with a simply dressed green salad.