Cooking a ham is often associated with high-stress holiday prep and a crowded oven. Between the turkey or the sides, oven real estate is at a premium. However, learning how to cook ham in the crock pot is a total game-changer for home cooks. Not only does it free up your oven for rolls and pies, but the slow-cooking process also ensures the meat stays incredibly tender and juicy, avoiding that dreaded “holiday leather” texture that can happen in a dry oven.
Using a slow cooker allows the ham to bathe in its own juices and whatever delicious glaze you choose, resulting in a depth of flavor that is hard to achieve with traditional roasting. Whether you are preparing a meal for Easter, Christmas, or just a cozy Sunday dinner, this method is foolproof, hands-off, and consistently delicious.
Why the Slow Cooker is Superior for Ham
The primary challenge with cooking a ham is that most hams purchased at the grocery store are already “fully cooked” or smoked. This means your job isn’t actually to cook the meat from scratch, but rather to reheat it to a safe temperature without drying it out.
In a standard oven, the hot, dry air pulls moisture away from the meat. In contrast, a crock pot creates a sealed, humid environment. As the ham heats up, the steam is trapped inside the vessel, basting the meat continuously. This is especially beneficial for spiral-cut hams, which are notorious for drying out because the pre-sliced layers expose more surface area to the air.
Choosing the Right Ham for Your Crock Pot
Before you start, you need to ensure your ham will actually fit in your slow cooker. Most standard oval-shaped crock pots (6 to 7 quarts) can accommodate a ham weighing between 7 and 10 pounds.
Spiral Cut vs. Whole Bone-In
Spiral-cut hams are popular because they are convenient to serve. Since they are already sliced, the glaze can seep down between the layers, flavoring every bite. However, they are the most susceptible to drying out. Bone-in hams generally have better flavor and texture. The bone acts as a conductor of heat and adds a richness to the meat that boneless varieties lack. Plus, you get to keep the ham bone afterward for split pea soup or beans.
Sizing and Fit
When shopping, look for a ham that is “shorter and wider” rather than “tall and skinny.” If you get home and find the lid won’t close completely over the ham, don’t panic. You can create a “foil tent” by tightly wrapping heavy-duty aluminum foil over the top of the slow cooker to seal in the steam.
Preparing Your Ham for the Slow Cooker
Once you have your ham, the preparation is minimal. If your ham came with a plastic “button” on the bone, make sure to remove and discard it.
If you are using a non-spiral cut ham, you might want to “score” the fat. Use a sharp knife to cut a diamond pattern into the surface of the fat, about 1/4 inch deep. This doesn’t just look professional; it creates channels for your glaze to sink into the meat instead of just sliding off the surface.
The Secret to a Perfect Glaze
While some hams come with a pre-packaged glaze packet, making your own is simple and significantly elevates the dish. A great ham glaze needs a balance of sweetness, acidity, and spice.
Common bases for a crock pot ham glaze include:
- Brown sugar or honey for sweetness and caramelization.
- Pineapple juice, orange juice, or apple cider for acidity and moisture.
- Dijon mustard or apple cider vinegar to cut through the richness of the fat.
- Warm spices like ground cloves, cinnamon, or even a pinch of cayenne.
A popular “set it and forget it” glaze involves whisking together 1 cup of brown sugar, 1/2 cup of maple syrup, and 1/2 cup of pineapple juice. Pouring this over the ham at the start of the cooking process allows the sugars to break down and form a sticky, savory syrup at the bottom of the pot.
Step-by-Step Instructions for Slow Cooking
- Place the ham in the slow cooker. If it is a bone-in ham, place it flat-side down.
- Rub your dry seasonings or sugar over the surface of the meat.
- Pour your liquid components (juice, soda, or syrup) over the top.
- Cover with the lid (or a foil tent) and set the temperature.
For most hams, you want to cook on Low for 4 to 6 hours. Cooking on High is possible (usually 2 to 3 hours), but Low is recommended to maintain the integrity of the meat fibers. The goal is to reach an internal temperature of 140°F, which is the standard for a fully-cooked ham that has been reheated.
Enhancing the Flavor Profile
If you want to get creative, consider these flavor variations:
The Tropical Approach
Layer pineapple rings and maraschino cherries over the ham using toothpicks. Use the pineapple juice as your liquid base. This creates a classic “Hawaiian” style ham that children especially love.
The Boozy Glaze
Replace the fruit juice with a cup of bourbon or a dark, malty beer. The alcohol cooks off, leaving behind a complex, smoky sweetness that pairs perfectly with the saltiness of the pork.
The Herb-Crusted Ham
For a more savory profile, skip the heavy sugar and use a mix of Dijon mustard, minced garlic, fresh rosemary, and thyme. This is an excellent option for those who find traditional glazes too cloying.
The Finishing Touch: Searing the Crust
While the crock pot is amazing for moisture, it doesn’t provide the crispy, caramelized exterior that an oven does. If you prefer a “crust” on your ham, follow these steps once the ham is finished in the slow cooker:
- Carefully remove the ham from the crock pot and place it on a baking sheet.
- Take the liquid remaining in the pot, pour it into a saucepan, and simmer it on the stove until it reduces into a thick syrup.
- Brush this reduction over the ham and place it under the oven broiler for 3 to 5 minutes. Watch it closely, as the high sugar content in the glaze can go from caramelized to burnt very quickly.
Food Safety and Storage
Leftover ham is arguably the best part of the meal. Once the dinner is over, carve the remaining meat off the bone as soon as possible. Do not leave the ham sitting at room temperature for more than two hours.
Store leftover ham in an airtight container in the refrigerator for up to 4 days. If you can’t finish it all by then, ham freezes exceptionally well. Wrap individual portions in plastic wrap and then foil, and they will stay fresh in the freezer for up to 2 months.
Don’t forget the bone! A slow-cooked ham bone is packed with marrow and flavor. You can freeze the bone itself to use later as a base for stocks or hearty winter stews.
Common Mistakes to Avoid
One mistake people often make is adding too much liquid. You don’t need to submerge the ham. About 1/2 cup to 1 cup of liquid is plenty because the ham will release its own juices as it warms up.
Another mistake is opening the lid too often. Every time you lift the lid of a slow cooker, you release the accumulated steam and heat, which can add 15 to 20 minutes to the total cooking time. Trust the process and keep the lid on until you are ready to check the internal temperature.
Frequently Asked Questions
Can I cook a frozen ham in the crock pot?
It is not recommended to put a completely frozen ham directly into a slow cooker. Because the crock pot heats up slowly, a frozen ham will spend too much time in the “danger zone” (between 40°F and 140°F) where bacteria can grow rapidly. Always thaw your ham in the refrigerator for 24 to 48 hours before cooking.
What if my ham is too big for the lid to close?
This is a common issue with larger bone-in hams. Simply take a large piece of heavy-duty aluminum foil and wrap it over the top of the slow cooker, crimping the edges tightly around the rim of the ceramic pot to create a seal. This mimics the lid and keeps the moisture inside.
Do I need to add water to the bottom of the pot?
You should add some form of liquid, but it doesn’t have to be water. Using water can dilute the flavor of the ham. Instead, use apple juice, pineapple juice, ginger ale, or even a little bit of orange marmalade thinned with water to add flavor while providing the necessary steam.
How do I keep the ham from getting too salty?
Most hams are cured with a significant amount of salt. If you are sensitive to salt, you can rinse the ham under cold water before putting it in the crock pot. Additionally, using a sweet glaze helps balance the natural saltiness of the meat.
How long does it take to cook a 10 pound ham in a crock pot?
For a 10 pound fully-cooked ham, it generally takes about 5 to 6 hours on the Low setting. You are aiming for an internal temperature of 140°F. Since the ham is already cooked, you are simply looking for it to be hot all the way through to the bone.