Dear Brooklyn/Queens Chowhounds, although this is not about a restaurant I am posting this message on our board--I am having problems locating CREAM OF TARTAR in the supermarkets in my area (Elmhurst, Maspeth, Ridgewood). A friend asked me to search it out for her, as she is having problems finding it in the stores in her neighborhood (Cypress Hills, East New York, Brooklyn). She uses cream of tartar in her batter for scones. I can remember years ago that cream of tartar was used by my mother to clean discolored aluminum pots--but have not ever searched it out for myself. Am I looking in the wrong place? Should I go to a pharmacy? Or perhaps an ethnic import place, Anglo-Irish? I read up on cream of tartar, and found out that certain types of single-acting baking powder are tartrate-based, either cream of tartar or a blend of cream of tartar and tartaric acid. Does anyone know of a supermarket/store that sells cream of tartar in Queens or Booklyn? Thanks!