This is a recipe that can be substituted in other recipes that call for baking mixes like Atkins or GNC. As a hint, you can buy whey/soy protein powder in those fancy containers for body-builders, etc.....OR you can buy it at a bulk food store for WAAAAAAY less money. I paid $20 at the drug store for a small container of it, and then found it for about $1.07/100g at the bulk food store.

Actually, the bulk food store is turning out to be a great place to buy funky flours and stuff.
Baking Mix Substitute Ingredients:
1 cup protein powder (e.g. whey)
1 cup soy flour
3 Tbsps baking powder
1 tsp salt
Cooking Instructions:
Sift all together 3 times. Use as you would the Atkins or GNC bake mix.
Low Carb Cooking: Baking Mix Substitute