You need 1 ingredient. The key ingredients include: ["Ingredients for 2 or 3 big terrines (15 to 20 people).", "(For 1 big terrine, you can divide these quantities by two).", "1 or 2 terrine dish(es) -they must have a lid.", "1 kilo (2+ pounds) of chicken livers", "1+ pound of sausage meat", "1.5 to 2.0 pounds of ground pork (not lean, we need the fat).", "1 or 2 big slices of bread (preferably whole wheat).", "2 or 3 onions", "2 or 3 shallots", "3 eggs", "A few tbsp butter", "1 big package of thinly sliced bacon, not smoked, and preferably without nitrates", "(This is the substitute for ""caul fat"" (crepine in French), which is difficult to find here.", "If you are lucky enough to find it, it is preferable.)", "Black pepper (45 turns of a pepper mill)", "3 teaspoons of salt", "1 or 2 teaspoons of cayenne pepper (lower these two quantities if the sausage meat is already seasoned)", "3 teaspoons thyme leaves, slightly ground", "2 bay leaves, whole", "2 teaspoons ""four spice".