Prepare Pineapple Teriyaki Sauce; transfer to a bowl and cool completely.
Add shrimp to cooled teriyaki sauce to marinate while you slice the pineapple; no longer than 15 minutes.
Slice the pineapple into 2-inch pieces the same thickness as the shrimp, about ½-inch.
Remove the shrimp from the marinade. Thread the shrimp, pineapple and scallions onto the skewers. Set aside in the refrigerator ready to grill.
Place teriyaki sauce in a small pan and bring to a boil; Remove from heat and set aside.
Set up grill for direct cooking over medium high heat. Brush and oil grates before cooking.
Place skewers on the grill and cook for 2 to 3 minutes, flip and baste with teriyaki sauce. Cook for another 2 to 3 minutes flip, baste and remove from the grill.
Serve immediately with extra teriyaki sauce.
Recipe by Grilling Outdoor Recipes powered by Bull Outdoor Products at https://blog.bullbbq.com/pineapple-teriyaki-shrimp-skewers/