Cooking shrimp in beer is fairly common, particularly as the beer's aroma can enhance the natural flavor of shrimp and keep the meat from drying out during the cooking process. While you can get a similar result by marinating the shrimp in beer overnight and then sautéing the shrimp, boiling the shellfish in beer is a faster method if you don’t have time to marinate the shrimp. Dishes made with shrimp cooked in beer should be served with bottles of the same beer to avoid competing flavors.
Rinse the shrimp under cool, clean water.
Peel the shrimp, removing the head section first; leave the tail intact.
Remove the digestive tract from each shrimp's back with a sharp paring knife, discarding the tracts as you go.
Rinse the shrimp in a colander under cold running water once more before patting them dry with paper towels.
Pour the beer into a large stockpot or saucepan with a tight-fitting top and add the garlic, salt and black pepper. Cover the stockpot or saucepan and bring the mixture to a boil over high heat.
Add the shrimp to the stockpot or saucepan and cook them for four to five minutes or until they have turned bright pink.
Immediately remove the shrimp from the boiling liquid with a slotted spoon and transfer them to a warmed serving platter or serving bowl.
Garnish the shrimp with chopped fresh flat-leaf parsley and serve them with melted butter and lemon wedges while warm.