I came to forum for a similar topic and was given the following link. I have yet to try an actual recipe, but I plan on brewing one in the next few months. My wife was diagnosed with Celiac about 4-5 years ago and her brother was just recently diagnosed this week. Being that I will need some family to drink beer with, I need to get a batch going!
If you start brewing GF, I would enjoy hearing out it turns out and any advice that you pick up along the way. The batch that I am planning is going to mainly use rice syrup as the main fermentable. I am going to try and malt some buckwheat and then roast it for a little flavor and color, and I also plan on adding some oatmeal to give the beer some body. I am not sure about amounts yet.