Sort the kale, pluck from the thick ribs and wash thoroughly. Blanch in plenty of boiling salted water in a large pot for about 3 minutes. Drain and let cool down a little. Roughly chop
Onions peel and cut into slices. Peel, wash and cut carrots and potatoes into thick slices
Fry the onions in hot clarified butter in a large pan. Steam potatoes and carrots briefly. Add kale and apricots. Stir in 1/2 l water and stock, bring to the boil. Season with salt, pepper and sugar. Cover and stew for about 45 minutes.
Grate cheese. Mix with crème fraîche and cream. Season the kale to taste, pour into a large greased casserole dish. Spread the cheese cream on top. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/gas: level 3) for approx. 20 minutes