Clean the cauliflower, cut out the hard stalk so that the head does not fall apart. Wash cauliflower. In a large pot, boil plenty of salted water with 75 ml milk and lemon juice. Add the cauliflower (cabbage must be covered with water), if necessary weight down with a skimmer and cook for 15-17 minutes.
Melt the fat in a saucepan, dust with flour and sauté. Deglaze with 250 ml milk and broth while stirring, bring to the boil, season with salt, pepper and nutmeg. Wash the chives, shake dry, cut into small rolls and stir into the sauce
Lift out the cauliflower, drain and serve with sauce