I've never had it personally, but I know it's made from the "sparkling waters of the Genesee River". Pretty sure I saw a couch floating down that once. Couch could be a potential ingredient.
All kidding aside, it looks like a very light beer for a "brown". According to the website 4.5% ABV and 10 IBU. (Probably not much of a hop nose to it, so you can leave out aroma hops.
Shooting for OG 1.043, FG 1.008 (abv 4.56%)
For 5 gallons @ 70% efficiency maybe something like this:
- 4.75 lb Pale Malt 2-row
- .5 lb Honey Malt
- .5 lb dark crystal (120L) malt
- 2 lbs honey
For hops, .5 oz Cascade (5.0% AA) at 45 minutes giving you 10 IBU
Mash medium-low, like 150-152F to add more fermentables and hopefully dry the beer out a bit. The honey will help with that too. Pasteurize honey by adding it to hot wort at flameout and waiting 10 min before cooling.
Use a nice large starter of some clean-fermenting lager yeast and make sure you keep the ferment in the optimum range. After your ferment, lager the heck out of it making it a nice clean beer.
I've never tasted the real thing. My mom loves the stuff though, so maybe I'll pick up a sixer and see what I can come up with.
Recipe note: mashing old couch is optional.