01 -
Heat your oven to 350°F. Place chicken breasts in a baking dish and coat with half the BBQ sauce. Bake for 20 minutes or until the internal temperature reaches 165°F and juices run clear.
02 -
Remove chicken from oven and let cool for 5 minutes. Using two forks, shred the chicken into bite-sized pieces. Mix the shredded chicken with the remaining BBQ sauce until well coated.
03 -
Spread butter on one side of each bread slice. Place all slices butter-side down on your work surface. This will be the outside of your sandwiches.
04 -
On the unbuttered side of 4 bread slices, layer in this order: ¼ cup cheese, ¼ of the BBQ chicken mixture, 3 pineapple rings, and another ¼ cup cheese. Top with remaining bread slices, butter-side up. Press gently to help everything stick together.
05 -
Heat a large skillet over medium heat and spray with cooking spray. Cook 2 sandwiches at a time, butter-side down, for 3-4 minutes until golden brown. Flip carefully and cook 1-2 minutes more until the second side is golden and cheese is melted.
06 -
Remove from heat and let cool for 1 minute. Cut each sandwich in half diagonally and serve immediately while the cheese is still gooey.