I've been making variations on Mollie's protein bar recipe for years now. Due to a special diet I'm currently on to try to combat ongoing digestive and new food allergy issues, I'm not able to use the soy powder at this time. Since there's a full cup, I don't know if just leaving it out of the recipe without a sub of any kind is possible. Has anyone else made these and, if so, any advice you can offer? Thank you!