Chop the cooked fish and puree in a blender. Sweat the shallot and garlic cubes in a little butter until translucent and knead with the fish mixture. Season the whole thing with the spices. Shape small, flat meatballs or flatbreads, turn in flour, pull through the beaten eggs and roll in breadcrumbs (knock off well). Fry in sufficient fat on each side until crispy.