American Baker in Germany

This post came about after a very angry comment on my video about the difference between baking powder and baking soda. Evidently, there is a difference between German and American baking powder that I neglected to discuss. So, I did some research, and what we're really talking about is the difference between single and double-acting baking powder. American baking powder is almost 100% double-acting. Here in Germany, baking powder is single-acting. So, how can you convert one to the other. The answer will probably surprise you. *photo credit: Aubrey Rogers So, first of all, what is the difference? Baking powder contains a thickener, such as cornstarch, and at least one acid and one base in powdered form. Most commonly, the base is sodium bicarbonate, aka baking soda. The acid can vary.   In Germany, the acid used is typically dinatrium hydrogen diphosphate, which is a weak acid that begins working when the mixture becomes wet and continues working with the application of...