Sofritto
["2 beef hearts", "1 medium onion, chopped", "4 large cloves garlic", "1 tsp. oregano", "1 Tbsp. Italian parsley", "6 fresh leaves basil", "6 (6 oz.) cans tomato paste"]
["Chop hearts into 1/4-inch cubes.", "Wash cubes in salt water. In 3-quarts of water, boil cubes for 45 minutes.", "Drain cubes and set aside."]
["beef hearts", "onion", "garlic", "oregano", "Italian parsley", "fresh leaves basil", "tomato paste"]