Remove the stalk from the savoy cabbage and cut into small pieces.
Boil the inner light-colored leaves (approx. 1/3 of the savory) with the finely chopped onion, salt, a little sugar, pepper and nutmeg in the cream (alternatively milk) until soft and then puree.
Salt the darker leaves of the savoy cabbage, add some sugar and cook covered with a little water and a piece of butter for about 5 minutes and then mix with the savoy cabbage puree.