Just recently re acquainted myself with that hoppy temptress...like Campbell's soup...mmm mmm good! Sam Adams been my brew of choice since '92...how bout you?
I usually drink high proof beer because it's an effective delivery mechanism. That being said, the best marinade I ever used for meats primarily contained beer that had been sitting out in the hot sun for a few years. Sounds gross to drink, I know, but it made for a flavorful cooking ingredient.
Yes, I will swear on a stack of bibles that the best beer I ever used for marinades and batters was in some cheap bottles that sat out in the backyard for a couple years. I never took a sip from them, but as a cooking ingredient they were awesome.
I dared a friend to take a sip from one bottle, and he got immediately sick. It's not drinking beer.
I usually squeeze in some lemon juice and add a pinch of pepper along with some soy sauce and garlic, maybe some brown sugar depending on the cut of meat. It's nothing too fancy, but the cheap stale beer cooks up to a very robust flavor.
I also use it in batter recipes - again, nothing out of the ordinary. It's made the best onions rings I've ever tasted.