Cut the potatoes into quarters and cut the corn into small pieces.*
Add the potatoes and corn to a pot and cover with water. Bring to a boil. Once boiling cook for 5 minutes then drain and add to a large bowl.
Cut the sausage into ½ inch slices and add to the bowl. Then add in the shrimp, garlic, old bay, salt, pepper, and parsley. Toss everything together to coat in the seasonings.
Lay out 6 sheets of aluminum foil and distribute the shrimp boil ingredients between them.
Add 1 tablespoon of butter and squeeze a lemon wedge in each packet then seal the package tightly closed. (You can toss the lemon wedge in as well)
Place the foil packets on a baking sheet and bake for 15 minutes. (I like to turn them over once they come out of the oven to make sure everything is coated in the lemon butter sauce before opening!)
Carefully open the packets (watch for the steam) and serve while hot. We like to serve ours with cajun rice or bread for dipping in the sauce. Enjoy!
Notes
* To cut the corn, press a sharp knife into the corn cob where you want to cut it then give it a good whack to cut through. (Be careful and do not try to cut frozen corn)