Julie, all the grocery stores in my area carry Bob's Red Mill products that can be found in the baking section. My health food store has them also.

There is a Bob's Red Mill Wheat Free Biscuit & Baking Mix that is wheat and gluten free. It is made from stone ground white rice and garbanzo bean flours, xantan gum and aluminum free baking powders.

Two days ago I made DH, who is on Maintenance, muffins that were identical in looks, taste and texture to devils food cake. I added some chocolate whey protein powder, unsweetened cocoa, an egg, Hood's chocolate milk and SF DaVinci chocolate syrup until it mixed into a cake batter consistancy. Just like devils food cake in every way that I remember, only without any sugar and less carbs. It can be used for biscuits, pancakes, waffles, shortcake, etc. The back of the package has a wonderful recipe for Impossible Ham & Swiss Pie.

This stuff could be just what you're looking for to meet DH's dietary needs.