Chop the cabbage, place in a pan of boiling water, add salt and cook for 3 minutes. After this, drain the cabbage in a colander. Grate the cheese on a coarse grater. Grind the peanuts in a blender or with a knife. Finely chop the onion.
Heat the butter in a saucepan and fry the flour in it. Then add milk little by little and stir until you get a smooth sauce without lumps. Add mustard, pepper, nutmeg, mix everything.
Combine cabbage, cheese and crushed peanuts, pour milk sauce and stir. Place the mixture into small baking dishes, greased with oil. Place in a preheated oven and bake at 180 ℃ until golden brown, this will take approximately 20 minutes.
Serve hot cabbage soufflé with fresh tomato salad, sprinkle with fresh herbs.