Halve the cabbage, cut out the stalk and remove the outer leaves. Cut leaves into pieces, removing thick leaf panicles. Wash and drain the cabbage. Wash and halve the tomatoes.
Wash the meat, dab dry and cut into cubes. Heat 1 tablespoon of oil and 1 tablespoon of water in a large, coated pan. Steam cabbage for 1-2 minutes while turning, allow the liquid to evaporate and fry for another 2 minutes.
Season with salt and pepper and remove. Heat 1 tablespoon of oil in the frying pan. Add potato noodles and fry for 2-3 minutes until brown, season with salt and pepper and remove. Heat up the frying pan again and fry the pork loin for 2-3 minutes, turning it over.
Add butter and let it melt. Dust everything with flour and sweat briefly. Deglaze with stock and cream. Bring to the boil, stir in mustard and season with salt, pepper and sugar. Add cabbage, smoked pork loin, potato noodles and tomatoes to the sauce, heat up, season with salt and pepper if necessary and serve.