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,
Maida flour also made using maida. Maida flour Maida is a white flour from the Indian subcontinent. Finely milled without any bran, refined, and bleached, it closely resembles cake flour. In Tamil Nadu, Andhra Pradesh maida is made from tapioca from cassava roots. Maida is used extensively for making fast foods, baked goods such as pastries, bread, several varieties of sweets, and traditional flatbreads. Owing to this wide variety of uses, it is sometimes labeled and marketed as "all-purpose flour", though it is different from all-purpose flour as commonly understood in the US. Maida is made from the endosperm and it is