Sodium bicarbonate breads, soda bread, and other baked and fried foods. Acidic compounds that induce this reaction include phosphates, cream of tartar, lemon juice, yogurt, buttermilk, cocoa, and vinegar. Baking soda may be used together with sourdough, which is acidic, making a lighter product with a less acidic taste. Heat can also by itself cause sodium bicarbonate to act as a raising agent in baking because of thermal decomposition, releasing carbon dioxide. When used this way on its own, without the presence of an acidic component (whether in the batter or by the use of a baking powder containing acid), only half
Old-fashioned doughnut invented, but this very likely occurred "after" the cake doughnut was invented. Prior to circa 1829, doughnuts were typically the yeast-risen variety in the U.S. Circa the 1830s, the leaveners baking soda and baking powder began to be available to U.S. consumers, which is around the same time that cake doughnut recipes first appeared in U.S. cookbooks. Primary ingredients in an old-fashioned doughnut include flour, sugar, eggs, sour cream or buttermilk, and leavening agents such as baking powder or baking soda. Additional ingredients may include milk, butter, vanilla extract and salt. The use of buttermilk or sour cream may impart