Sort the kale, pluck from the thick ribs and wash thoroughly. Blanch in plenty of boiling salted water for 2-3 minutes. Quench, drain and roughly chop
Onions peel, finely dice. Sauté in 1 tbsp. hot oil in a saucepan. Sprinkle with about 1 tsp. sugar and caramelise. Add kale and fry. Add a good 1/4 l water and stock. Bring to the boil, cover and cook for 20-25 minutes
Wash the salmon, pat dry and cut into large cubes. Sprinkle with lemon juice and let it steep a little. Season salmon cubes with salt and pepper. Fry in 1 tablespoon of hot oil all around for 5-6 minutes
Season kale with mustard, salt and pepper to taste. Serve with salmon and 1 tablespoon of Crème balance each. Sprinkle with coarse pepper. Served with: Boiled potatoes