Also a Place in Rhode Island by CoenM

Question 11

Developed by Eben Horsford, what BRAND of baking powder replaced cream of tartar - which had to be kept separate from sodium bicarbonate and was irregularly available - with monocalcium phosphate? The only other ingredient, corn starch, was added to control moisture content.

Rumford (edited at 10:22 pm, January 31, 2016 (PST))

Original Answer: Rumson