Unlike the other entries on this list, baking powder works best as a cream of tartar substitute only if your recipe also contains baking soda. This is because baking powder contains both cream of ...

produces baking powder, an all-in-one leavening agent. As great as cream of tartar is, sometimes you just don't have any on hand, so it's vital to know its substitutes. We turned to Dennis Littley ...

Students are told that baking powder is a mixture of three ingredients (baking soda, cream of tartar, and cornstarch) and that two of these ingredients react to produce a gas when water is added.