<<Disclaimer: Verify this information before applying it to your situation.>> Hi there! I've just very recently been diagnosed with CD and am trying to get used to the diet. I really miss bread and baked goods, and would like to try out some recipes for my bread machine (as well as some for cookies!) Could someone please tell me what the differences between potato flour, potato starch, and potato starch flour are? I have read that potato starch flour should be used as part of the substitute flour recipe, but I have only been able to find either potato flour or potato starch, not "potato starch flour." Also, what is the difference between guar gum and xanthan gum (besides about $15 for a small bag?) Can you use these interchangeably, or is there a way to substitute guar gum for xanthan gum in recipes? Thanks very much for your help! This list is a great resource. Lynne Weagle Vancouver, Canada [log in to unmask]