Margarine
Margarine is an unsaturated butter substitute—also made of at least 80% fat, except that the fat is made from vegetable oils. To make it taste like butter, some dairy flavorings are added to give it an authentic taste. This stuff works in baking as well, and is sold in stick or tub form. Margarine in stick form is better for cooking, because it can be easily measures. However, margarine in a tub (soft margarine) is easier to spread.