Fried pork with polenta

Ingredients :

400g of pork loin,
400 grams of sausage,
400 g of liver,
800 g onion,
50 g butter,
broth,
flour,
two bay leaves,
a touch of tomato paste,
pepper,
salt

Thinly slice the onions, simmer slowly with half the butter, or with
similar quantity of oil or lard or bacon chopped, and a few spoonfuls of broth, and set aside. jump in the same pan in remaining butter, the sliced pork loin, sausage into pieces of approximately seven inches and finally the liver sliced thin not, for a quick browning.
Put already onions to cook, salt lightly, touch up with the tomato sauce, add the broth if necessary, and keep cooking for another half hour or more.
Serve with polenta.