Thanks, Miniman, Mama and luvs. All things suggested are helpful and we've passed the information on to our friend. I'm not altogether sure exactly what she is planning to cook/bake but since she's not a stellar cook (she once called Fallon (in a total panic, no less) to inquire if one must add water to instant rice to cook it - if that gives you an idea of how skilled Sandra is! Anyway, if I'd been clear-headed, I'd have remembered things like potato and rice flour but I was so embarrassed that I even had to ask for suggestions for this simple problem after having attended cooking school, for crying out loud - that my little brain just froze! Fallon called Sandra this afternoon and suggested to her that if she was going to cook/bake anything that required any significant amount of wheat product that she hike down to the local bakery and purchase it - much easier and safer than to risk allergies for either herself or her husband trying to figure alternative on her own. Probably the best thing to do. Anyway, thank you all for your excellent suggestions and help. When Fallon said the words "gluten-free" to Sandra this afternoon you'd have thought Fallon was speaking in sanskrit!!
Ian