Clean, wash and cut the leek into rings. Wash apples, dab dry, quarter and cut out the core. Cut apples into slices and sprinkle with lemon juice. Wash marjoram, shake dry and chop coarsely.
Wash the chops and pat them dry. Heat 20 g of clarified butter in a large pan and fry the chops in portions, turning them briefly. Season with salt and pepper and place on a baking tray.
Cook in the preheated oven (electric cooker: 80-100 °C/ circulating air: 50-75 °C/ gas: see manufacturer) for about 10 minutes.
Pour oil into the hot pan, fry the leeks in it while turning, remove. Add butter, apple slices and sugar to the pan and allow to caramelize briefly. Add the leek, marjoram, apple juice and stock, bring to the boil and braise covered for 5-10 minutes.
Heat 20 g clarified butter in a second pan, fry the potato noodles in it until golden brown, turning. Stir fried onions lightly into the sour cream. Add chops to the leek and apple vegetables in the pan and arrange.
Add potato noodles and sour cream.