Slice cabbage into long strands and fry onion in 25g butter until soft.
Add spices, cabbage, 150ml cider, vinegar, and sugar, then simmer covered for 40 minutes.
Stir in apple slices and cook covered for another 10 minutes until cabbage is tender.
Preheat oven to 200°C.
Season pork steaks and spread 1 tsp wholegrain mustard on each.
Squeeze liquid from grated potatoes and mix with 150g melted butter, salt, and pepper.
Pack potato onto pork, fry on both sides for 2 minutes, then bake for 15 minutes.
Fry shallot in the pork pan for 2 minutes, then stir in flour.
Add 450ml cider, mustards, sugar, and honey, reduce by half, then stir in cream and thicken.
Rest pork for 5 minutes and serve with cabbage and sauce.