01 -
Preheat the oven to 375° F.
02 -
In a medium saucepan, combine the pineapple juice, brown sugar, honey, mustard, cinnamon sticks, cloves, and ground nutmeg. Bring to a heavy simmer, then reduce the heat to medium-low, and allow the glaze to simmer until thickened, approximately 15-20 minutes.
03 -
Place the tenderloin in a 9” x 13” baking dish. Season with salt and pepper. Make incisions 3/4-inch apart, taking care not to cut through the bottom, leaving 1/2-inch space under the tenderloin.
04 -
Brush one-half of the glaze all over the tenderloin and inside each incision.
05 -
Slice the pineapple slices in half and place into the incisions.
06 -
Bake until the internal temperature of the pork reaches 145° F, approximately 25-30 minutes. Remove from the oven and increase the heat to 400° F.
07 -
Brush the remaining glaze all over the tenderloin and the pineapple slices and return the tenderloin into the oven to bake for another 10 minutes or until slightly caramelized.
08 -
Remove from the oven and allow to rest for at least 10 minutes before serving.