179 Meatballs from veal kidneys

• 2 veal kidneys
• 1 onion
• 1 spoon butter

Scald 2 veal kidneys, remove the membranes, chop fine, and add salt. Fry 1 finely chopped medium onion in 1 spoon butter, mix with the kidneys, and add 2–3 ground rusks. Beat in 2 eggs, 2