Quick bread leavening agents include a weak base, such as baking soda (sodium bicarbonate) plus a weak acid, such as cream of tartar, lemon juice, or cultured buttermilk, to create an acid–base reaction that releases carbon dioxide. (Quick bread leavened specifically with baking soda is often called "soda bread".) Baking powder contains both an acid and a base in dry powdered form, and simply needs a liquid medium in which to react. Other alternative leavening agents are egg whites mechanically beaten to form stiff peaks, as in the case of many waffle recipes, or steam, in the case of cream puffs. Nevertheless,
Cream soda Cream soda Cream soda (also known as creme soda) is a sweet carbonated soft drink. Traditionally flavored with vanilla and raspberry and based on the taste of a classic soda, a wide range of variations can be found worldwide. A recipe for cream soda—written by E. M. Sheldon and published in "Michigan Farmer" in 1852—called for water, cream of tartar (tartaric acid), Epsom salts, sugar, egg, and milk, to be mixed, then heated, and when cool mixed with water and a quarter teaspoonful of baking soda (sodium bicarbonate) to make an effervescent drink. It was suggested as a temperance drink