Peel and wash the potatoes, dab dry and cut into wafer-thin slices. Season cream with salt, pepper and nutmeg. Peel garlic. Grease an oven dish (width: 12 cm; length: 18 cm; height: 5 cm) and rub garlic into it. Layer potatoes in the dish.
Pour cream over them. Spread the fat in flakes evenly on the potatoes. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 30-35 minutes until golden brown. Garnish with cherry tomatoes, parsley and freshly ground pepper