A coulis is a thin sauce made from puréed and strained vegetables or fruits. A vegetable coulis is commonly used on meat and vegetable dishes, and can also be used as a base for soups or other sauces. Fruit coulis are most often used on desserts. Raspberry coulis, for example, is especially popular with poached apples or Key lime pie. Tomato coulis may be used to add flavor to other sauces or served on its own.