Peel and wash the potatoes and slice or slice them thinly. Mix milk and cream. Peel garlic and press directly into it. Season with salt and pepper. Grease large gratin dish. Spread potatoes like roof tiles in it. Pour cream mixture over it. Sprinkle with cheese. Bake in the preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas: level 3) for approx. 45 minutes
Peel onions and cut them into fine strips. Drain chanterelles well. Tie the steaks into shape. Fry in hot oil for about 3 minutes on each side. Season, wrap in aluminium foil and let rest
Heat 1 tablespoon of butter in the frying fat. Fry the onions and chanterelles for about 3 minutes. Season. Deglaze with stock, boil down a little. Whip 2 tbsp. ice-cold butter in pieces (do not boil any more!). Season to taste
Cut 4 portions out of the gratin as desired with a round cookie cutter (approx. 9 cm Ø). Serve everything. Broccoli tastes good with it
Drink: full-bodied red wine