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, such as butter, lard, or margarine, but as used in recipes it refers to a hydrogenated vegetable oil that is solid at room temperature. Shortening has a higher smoke point than butter and margarine, and it has 100% fat content, compared to about 80% for butter and margarine.

Vanilla extract is a solution containing the flavor compound vanillin. Pure vanilla extract is made by extracting from vanilla beans in an alcoholic solution. In order for a vanilla extract to be called pure, the FDA requires that the solution contain a minimum of 35% alcohol and 13.35 ounces of vanilla bean per gallon^[1]. Double and triple strength vanilla extracts are available. Natural vanilla flavoring contains real vanilla bean but no actual alcohol. Imitation vanilla extract is usually made by soaking alcohol into wood, which contains vanillin.

-Wikipedia

Fats and oils are essential ingredients in nearly all bakery products. Shortenings have a tenderizing effect in the finished product and often aid in the manipulation of doughs. In addition to modifying the mouth feel or texture, they often add flavour of their own and tend to round off harsh notes in some of the spice flavours.

-Britannica Online Encylopedia