How To Cook Fully Cooked Ham

Reheating fully cooked ham can be done in several ways, and the method you choose affects moisture, texture, and serving time. If you want to know how to cook fully cooked ham so it stays tender and juicy, the good news is that you are really just reheating it to a safe serving temperature.

This guide covers oven, slow cooker, air fryer, and stovetop methods. You will also get glaze ideas, timing charts, and simple tips to avoid dry meat.

Fully cooked ham is already safe to eat cold. Cooking it again is about flavor and warmth, not safety. The goal is to reach 140°F (60°C) without drying it out.

What You Need Before You Start

A fully cooked ham (whole, half, spiral-cut, or ham steak)
A meat thermometer
A roasting pan with a rack or a baking dish
Foil or a lid
Optional glaze: brown sugar, honey, mustard, or jam

Always check the label. If it says “cook before eating,” it is not fully cooked. Those hams need different handling.

How Long To Cook Fully Cooked Ham

Timing depends on weight and method. Use these as a guide, then confirm with a thermometer.

Whole ham (10-15 lbs) in oven at 325°F: 12-15 minutes per pound
Half ham (5-7 lbs) in oven at 325°F: 15-18 minutes per pound
Spiral-cut ham: 10-12 minutes per pound, loosely covered
Ham steak: 4-6 minutes per side in a skillet
Slow cooker (5-7 lbs): 3-4 hours on low

These times are for reheating only. A whole ham may take longer if it is fridge-cold all the way through.

Oven Method For Fully Cooked Ham

The oven gives you the best control and the nicest glaze. This is the method most people use for holiday meals.

Step-By-Step Oven Instructions

Heat your oven to 325°F (165°C).
Place the ham in a roasting pan, fat side up. Add 1/2 cup water or broth to the bottom.
Cover loosely with foil. This traps steam and keeps the meat moist.
Bake until the center reaches 140°F. Start checking at the low end of the time range.
Remove the foil 20 minutes before the end if you want a browned top.
If using a glaze, brush it on during the last 20-30 minutes only. Sugar burns fast.
Rest the ham for 10-15 minutes before slicing. This lets the juices settle.

Do not overcook past 140°F. The meat is already cooked, so extra time only dries it out.

Best Glaze For Oven Ham

A simple glaze adds flavor without much work. Try one of these:

1 cup brown sugar + 2 tbsp Dijon mustard + 2 tbsp apple cider vinegar
1/2 cup honey + 1/4 cup orange juice + 1 tsp cloves
1/2 cup apricot jam + 1 tbsp soy sauce + 1 tsp garlic powder

Warm the glaze in a small pot first so it spreads easily. Brush it on in thin layers.

Slow Cooker Method For Fully Cooked Ham

A slow cooker is great for smaller hams and busy days. It holds moisture well and frees up your oven.

Slow Cooker Steps

Put the ham in the slow cooker. Cut it into two pieces if it does not fit.
Add 1/2 cup water, broth, or pineapple juice.
Cover and cook on low for 3-4 hours, or until it hits 140°F.
Brush with glaze in the last 30 minutes if you like.
Rest for 10 minutes, then slice.

Do not cook on high for long periods. The edges can toughen and the meat can dry out.

Other Ways To Reheat Fully Cooked Ham

Air Fryer Ham Steaks

Air fryer ham steaks are fast and easy. Set the air fryer to 350°F. Cook for 5-7 minutes, flipping once. Brush with glaze in the last 2 minutes.

Skillet Ham Steaks

Heat a little oil or butter in a pan over medium heat. Cook ham steaks for 4-6 minutes per side. Add a splash of water and cover for the last minute to keep them moist.

Microwave For Small Portions

Place slices on a microwave-safe plate. Cover with a damp paper towel. Heat in 30-second bursts until warm. This works for a single serving but can make the edges rubbery.

Tips To Keep Ham Moist And Tender

Do not exceed 140°F. Use a thermometer every time.
Keep the ham covered for most of the cooking time.
Add liquid to the pan or slow cooker.
Let the ham rest before slicing so juices stay in the meat.
Slice against the grain for a more tender bite.
If the ham is salty, soak slices in water for 10 minutes before heating.

Spiral-cut hams dry out faster because more surface is exposed. Keep them covered and check them early.

How To Store And Reheat Leftovers

Cool leftover ham within two hours. Store it in a sealed container in the fridge for 3-4 days. You can also freeze slices for up to 2 months.

To reheat leftovers, use a covered skillet over low heat with a splash of water. Or warm slices in the oven at 325°F for 10 minutes. Avoid high heat, which makes the meat tough.

Common Mistakes To Avoid

Cooking to 160°F or higher, which dries the ham
Adding glaze too early, which burns the sugar
Skipping the rest time and losing juices
Using high heat in the slow cooker all day
Not checking the label to confirm the ham is fully cooked

Follow these steps and you will get warm, juicy ham every time. Pick the method that fits your schedule, keep an eye on the temperature, and let the meat rest before you slice it.

How To Cook Fully Cooked Ham