Place the Kassler in a fan shape on a baking sheet. Mix the crème fraiche, the sweet and the sour cream together with the tomato paste and the spices (use plenty of thyme) into a sauce. Then pour over the meat. Now distribute the sliced Gouda over the meat and the sauce.
Bake in a preheated oven at 200 ° C for about 45 minutes.
Can be prepared very well and you can simply serve white bread with it.