This looks awesome! I haven't made it yet, but litteraly every recipe I have ever made from America's Test Kitchen comes out fantastic, they do a really good job.
http://www.americastestkitchenfeed.com/do-it-yourself/2011/09/how-to-make-american-cheese/
Way less additives than the pre-made stuff.
http://www.americastestkitchenfeed.com/do-it-yourself/2011/09/how-to-make-american-cheese/
Way less additives than the pre-made stuff.