Healthier dauphinoise potatoes

Method

1. Put the milk, whole garlic clove, bay leaves, thyme stalks and shallots in a heavy-based pan. Bring to boiling point, then remove from the heat and leave to infuse for 1 hour.
2. Preheat the oven to 180°C/fan160°C/gas 4. Use a mandoline or knife to cut the potatoes into 5mm slices. Put the slices in a colander and run cold water over until the water runs clear. Pat dry with a clean tea towel.
3. Put the crème fraîche into a large mixing bowl. Strain the infused milk into a measuring jug, then slowly whisk it into the crème fraîche. Stir in the crushed garlic clove, then add the potatoes. Season, then toss to coat. Pour into a 2 litre gratin dish and sprinkle with the thyme leaves, nutmeg and cheese. Cover with foil, then bake in the oven for 35 minutes. Remove the foil, then cook for a further 15-20 minutes or until the top is golden brown and the potatoes are cooked through.