Our Test Kitchen reveals the best uses for vegetable shortening (and substitutes in case you don't have any shortening on-hand).

Margarine is a butter substitute made of water, vegetable oil, artificial or natural color and flavor, and sometimes salt. The type of vegetable oil used can vary, but may include soybean, palm ...

Margarines with less vegetable oil have more water. More water usually will cause a cookie to puff up more in the oven due to the steam created. When eaten while warm, the cookies are tender and soft.

Is butter or margarine better for you? Fox News Digital speaks to a chef and registered dietitian to get their takes on which spread option is the best this Thanksgiving.