What you need:
1 bottle of beer, your favorite pilsner or Hefeweizen
10 ounces water
3 tablespoons Old Bay Seasoning
3 tablespoons butter
2 pounds 21/25 shrimp, shell ON, split through the back, deveined
In a large pot, combine the beer, water, Old Bay and butter and bring to a boil. Add the shrimp, cover and reduce the heat to low or medium-low for about 3 minutes or until cooked through.
Drain and serve with either cocktail sauce, butter or nothing.