Coulis is made of pureed vegetables or fruits and strained to get a smooth thick sauce. It is often used as a garnish or as a topping for desserts. Whereas sauce is a thickened liquid and a generic term used to refer to various types of foods. Few sauces are used as an accompaniment to complement the food. A few such sauces are - yogurt mint sauce and honey mustard sauce. The other variety is used in preparing other dishes such as pasta and curries.  Check out a few pasta sauce recipes from the blog -  pink sauce pasta, hidden vegetable sauce pasta and carrot pasta. A few curry sauces from the blog are -  paneer butter masala and paneer korma.