Do I need to add water to the crockpot?
Usually no. Between the pineapple juice and the ham releasing a little liquid as it warms, you will have plenty of moisture. If your slow cooker runs hot or your ham is very lean, you can add 1/4 cup water around the edges.
Is crockpot ham safe if the ham is already cooked?
Yes. You are reheating it. Many “ready-to-eat” hams are safe to eat cold, but for best serving texture and warmth, heat it until the thickest part hits 140°F (USDA guidance for reheating fully cooked ham). Use a thermometer and aim for tender, not overcooked.
How long do I cook a ham in the crockpot?
It depends on size, starting temperature, and how snugly it fits. A good guideline is about 3 to 5 hours on LOW for a 7 to 9 pound spiral ham, or about 2 to 3 hours on LOW for a smaller 3 to 5 pound boneless ham. You are heating through, not “cooking from raw,” so the thermometer matters more than the clock.
Can I cook it on HIGH?
You can, but LOW is safer for texture. If you must use HIGH, check early, around 1 1/2 to 2 hours, and switch to WARM once it hits 140°F.
What if my ham does not fit?
First, check slow cooker size: a 7 to 9 pound spiral ham usually needs an 8-quart, and a 6-quart can be tight. If needed, trim a small piece off the bottom to create a flat base, or gently wedge it in. If it still will not fit, use a smaller ham or cut it into large sections. Lid closed matters more than perfection.
Do I put the ham cut-side down or up?
Cut-side down is my go-to because it helps protect the sliced surface from drying out. If your ham is very tight to the bottom, you can set it on a couple foil balls (or a thick onion slice) like a tiny rack so heat and juices circulate.
What about the glaze packet that comes with my spiral ham?
You can use it, but this recipe is meant to replace it. Using both can make the ham very sweet and a bit salty. If you really want to use the packet, consider sprinkling on only part of it and skip some of the brown sugar here.
How do I make the outside caramelized if I used a slow cooker?
Optional but very worth it: place slices or chunks on a sheet pan, brush with glaze, then broil for 2 to 4 minutes until you get those crisp, sticky edges. Watch it like a hawk.