Green chili sauce, or pepper sauce refers to any spicy sauce made from green chili peppers and other ingredient. There are many recipes for chili sauces - the common ingredient being chili peppers. This sauce is prepared from fire roasted native green chili peppers. The skins are removed and peppers diced. Onions are fried in lard and a roux is prepared. Broth and chili peppers are added to the roux and thickened. Its consistency is similar to gravy, and it is used as such. It also is used as a salsa. It is generally preferred over red chilli sauce.