The Red Kraut (Rød Kraut) stems from my years in Denmark where it was served warm and usually with some apple and butter through it. You can still do that - cook the apple in butter and cool it to room temp. and mix the kraut through. But you don't need to. It has a lovely mild warmth of fennel seed and the sweetness of red cabbage. Pairs well with anything creamy like potato gratin, or a creamy pasta, on crackers or through a salad or Buddha bowl. It's quite popular with greens actually.