Pre-heat the oven to 350℉

1. Remove the ham from the package and remove the rind if necessary. Place the ham in an enameled Dutch oven or a roasting pan with a rack. Place the lid on the Dutch oven or cover it with aluminum foil if using a roasting pan.
2. Bake at 350 for 15 minutes per pound. 
3. While the ham is cooking, make the glaze. Add the crushed pineapple, brown sugar, and ground ginger to a mixing bowl and stir to combine. 
4. Remove the ham from the oven 45 minutes before it finishes cooking. Score the top, and spoon all the glaze over the ham.
5. Return the ham to the oven and bake uncovered for 45 minutes. Remove the ham from the oven every 15 minutes and baste it with the juices in the pan.
6. If the pineapple isn’t golden after 45 minutes, turn the broiler on for a minute or 2. Watch closely. Do not walk away!
7. Remove from the oven and rest for 20 minutes. Transfer to a large platter or cutting board for carving.
8. Meanwhile, simmer the remaining glaze to thicken it. If you’re using a Dutch oven, you can place it on the burner. If using a roasting pan, transfer the glaze to a small saucepan. 
9. Bring the glaze to a boil over medium-high heat and boil for one minute to thicken it.
10. Slice the ham how you like and serve with the remaining glaze and your favorite mustard.