These pork and pineapple skewers are a perfect addition to your summer grilling menu. Cubes of pork tenderloin are marinated in a tangy and sweet mixture of pineapple juice, soy sauce, and spices, then threaded onto skewers with chunks of fresh pineapple. The skewers are grilled until the pork is cooked through and the pineapple is caramelized, creating a delicious combination of flavors. Serve these skewers as a main dish with a side of rice or as an appetizer at your next barbecue.