Baking Powder
8 ounces bicarbonate of soda 6 ounces tartaric acid 1 pound high-grade cornstarch Put all the ingredients together and sift them thoroughly five times. Keep closely covered in glass jars or tin boxes.
The loose-leaf cookbook, c.1917 — built to be taken apart, from the principles of cookery through fireless cooking and school lunches.
8 ounces bicarbonate of soda 6 ounces tartaric acid 1 pound high-grade cornstarch Put all the ingredients together and sift them thoroughly five times. Keep closely covered in glass jars or tin boxes.