Remove the leaves from the cauliflower head and cut off the stalk. Then cut the remaining stalk in a cross shape so that it cooks better. Now cook the cauliflower in salted water until it`s done. Put the cooked cauliflower in an ovenproof dish.
In the meantime, make a roux from the margarine and flour. Pour in the cauliflower boiling water and bring to the boil until a creamy sauce is formed. Now add the sour cream to the sauce.
Season the sauce with salt, pepper, nutmeg and the granulated broth, but you can add a little more flavor.
Now pour the ham and then the cheese over the cauliflower head. Then pour the sauce around the side of the cauliflower.
Now bake in a hot oven at approx. 180 ° C until the cheese has melted.