Ingredients

20 g butter
1 onion halved, thinly sliced
1 kg Desiree potatoes
300 ml thickened cream
pinch ground nutmeg

Method

1. Preheat the oven to 200 degrees. Lightly grease an ovenproof dish.
2. Melt butter in a frying pan over medium heat, add onion and cook until soft. Remove from heat and set aside. Slice potatoes into 5mm thick rounds.
3. Pour cream into a jug, add nutmeg and salt and pepper and whisk to combine.
4. Arrange a layer of potatoes over base of prepared dish and top with layer of onion. Drizzle with a little cream mixture just covering potatoes, and repeat until all ingredients have been used.
5. Cover dish with foil and bake for 30-40 minutes, remove foil and cook for a further 30 minutes.