This grilled garlic shrimp in the shell is super delicious and so easy to make. Jumbo or large-to-medium large shrimp are grilled in their shells (if you prefer, you can remove the shells). They are marinated in a very quick and easy garlic sauce and then quickly grilled. These shrimp make a perfect appetizer or main course to serve gueststhey'll think it took you a lot longer to make. If serving for dinner, pair this dish up with some thai rice, and steamed veggies.