Snapper with onion

3 1/2 lbs veal knuckle 1 cup fat (chicken fat preferred, but whatever you want to use is fine) 3 onions , peeled and minced 2 stalks celery , chopped 2[...]

3 1/2 lbs veal knuckle 1 cup fat (chicken fat preferred, but whatever you want to use is fine) 3 onions , peeled and minced 2 stalks celery , chopped 2[...]

6 red snapper fillets , boneless and skinless 2 garlic cloves , crushed 3 ounces olive oil 1/3 lb onion , diced 1/3 lb celery , diced 1/3 lb mushroom ,[...]