Because the oil used for fondue reaches temperatures of 350 degrees Fahrenheit, a vegetable oil such as peanut oil, canola oil or sunflower oil makes for the best choice. Other fats, such as margarine, butter or shortening, burn at high temperatures and are not suitable for fondue. Burnt fat can impart unwanted flavors onto the food made in a fondue pot.
Fondue is more of a social gathering than a cooking style, as several people are able to dip foods into a fondue pot at one time. Mediums that commonly used in fondue pots, besides hot oil, include broth, cheese and chocolate. The food is attached to skewers and dipped into the liquid. Meat, bread and vegetables are common foods dipped into hot oil.