However , different recipes , even in the Bolognese tradition , make use of chopped pork or pork sausage , while chicken , rabbit , or goose liver may be added along with the beef or veal for special occasions , and today many use both butter and olive oil for cooking the soffritto of small amounts of celery , carrot and onion .
There are different recipes , some traditional ones also contain chopped pork or pork sausage .
There are different recipes , some traditional ones also contain chopped pork or pork sausage .
簡略化する: However , different recipes , even in the Bolognese tradition , make use of chopped pork or pork sausage , while chicken , rabbit , or goose liver may be added along with the beef or veal for special occasions , and today many use both butter and olive oil for cooking the soffritto of small amounts of celery , carrot and onion . 出力: