<<Disclaimer: Verify this information before applying it to your situation.>> In addition to having CD I am also corn intolerant. I cannot use regular baking powder as baking powder has either wheat or corn starch mixed in. The list of ingredients in Magic Baking Powder is as follows: Corn Starch Monocalcium Phosphate Sodium Bicarbinate I have located a baking supplier in Vancouver B.C. that will sell me a 50 lb bag (minimum size) of Monocalcium Phosphate. I know I can buy Sodium Bicarbinate as baking soda, and I can replace the corn starch with potato starch. Does anyone know of the ratio of the above three ingredients that is used in baking powder so that I can make my own baking powder? There must be a chemist out there somewhere! Or does anyone know where I could buy baking powder without corn or wheat starch? I will never use up the 50 pound bag of Monocalcium Phosphate in this life time! Thanks Thank you