For the ham mousse, first soak the gelatin. Coarsely chop the cooked ham. Add veal stock, nutmeg and sherry and puree finely in a multi-hand blender.
Allow gelatin to melt according to package directions and stir into ham puree.
Whip the cream with a whisk until stiff, mix gently. Allow to set in the refrigerator for 1-2 hours.
Scoop the ham mousse into dumplings with a tablespoon. Sprinkle with finely diced raw ham and chive rolls.