yum!

Ive had guinness floats... guinness & vanilla ice cream, simple & good.

Also (from Cooking Light, but don't hold that against it) - this is really good with a dark bread...

Beef Stew with Leeks and Beer

1 tablespoon olive oil
1 1/2 pounds sirloin tips or round steak, cut into 1-inch cubes
4 cups thinly sliced leek (about 4 large)
3 1/2 cups quartered mushrooms (about 8 ounces)
2 cups (1/4-inch-thick) sliced carrot
1 tablespoon brown sugar
1 teaspoon dried thyme
1/4 teaspoon salt
1/4 teaspoon black pepper
1 (14 1/4-ounce) can fat-free beef broth
1 (12-ounce) bottle light beer (feh! use oatmeal stout or something)
2 tablespoons cornstarch
2 tablespoons red wine vinegar

Heat oil in a large Dutch oven over medium-high heat. Add half of the beef; cook 5 minutes or until browned, turning occasionally. Remove from pan. Repeat procedure with remaining beef. Add leek and mushrooms to pan; sauté 3 minutes. Return beef to pan; stir in carrot and next 6 ingredients (carrot through beer). Bring to a boil; cover, reduce heat, and simmer 2 hours or until beef is tender.
Combine cornstarch and vinegar in a small bowl. Add cornstarch mixture to beef mixture; bring to a boil. Cook 3 minutes, stirring constantly.

I usually use stouts in chocolate cakes mixes instead of water as it makes the flavor more intense. I boil sausages in beer. I even use certain beers as ingredients in my icecream maker.