Preheat oven to 350℉
For the glaze, combine the juices, water, brown sugar, and the pepper flakes.
Simmer on the stove until the glaze thickens.
Score the top of the ham in a diagonal pattern to create a diamond shape, then insert whole cloves into the intersections.
Place the pineapple slices over the top of the ham.
Once the glaze has thickened, pour about half of it over the top of the ham, reserving the rest to baste while the ham is heating.
Cook the ham at 350℉ for about an hour or until the center is hot.
Remove from the oven and cover with foil, allow to rest for 10-15 minutes. Enjoy!