I grew up in Fernandina Beach which is also known as "the birthplace of the modern shrimping industry" and I've eaten a whole bunch of boiled shrimp, cooked by myself and others. But the best boiled shrimp I've ever had is cooked by my sister Kathy and I finally got her recipe and here it is!
3lbs fresh, cleaned, deveined WILD CAUGHT shrimp
Two bottles or cans of beer
About 1/2 cup of ketchup
1tsp or so of salt
2 bay leaves
Fill a large pot 3/4 full with water, add all ingredients except shrimp. When the water starts to boil, add shrimp. Cook about two minutes, test a shrimp - if not translucent anymore, maybe cook one more minute. Don't overcook! Drain shrimp into colander. Chill until ready to eat. Enjoy!