Pound cake For instance, baking soda or baking powder may be incorporated to induce leavening during baking, resulting in a less dense pound cake. A cooking oil (typically a vegetable oil) is sometimes substituted for some or all of the butter, which is intended to produce a moister cake. Sour cream pound cake is a popular variation in the United States, which involves the substitution of sour cream for some of the butter, which also is intended to produce a moister cake with a tangy flavor. Some of these variations may drastically change the texture and flavor of the pound cake, but
Butter sauce with meat and vegetables. In antiquity, butter was used for fuel in lamps as a substitute for oil. The "Butter Tower" of Rouen Cathedral was erected in the early 16th century when Archbishop Georges d'Amboise authorized the burning of butter instead of oil, which was scarce at the time, during Lent. Across northern Europe, butter was sometimes treated in a manner unheard-of today: it was packed into barrels (firkins) and buried in peat bogs, perhaps for years. Such "bog butter" would develop a strong flavor as it aged, but remain edible, in large part because of the unique cool,