Shortening is a semisolid fat used in food preparation, especially baked goods, and is so called because it promotes a "short" or crumbly texture (as in shortbread). The term "shortening" can be used more broadly to apply to any fat that is used for baking and which is solid at room temperature,like butter,lard (fat from pork) or margerine , but as used in recipes it refers to a hydrogenated vegetable oil which is solid at room temperature. Shortening 100% fat content, compared to about 80% for butter and margarine. Vegetable shortening can be found in any baking specialist shop. Branded vegetable shortening such as Crisco can be found in any supermarket.