The holiday season or a large Sunday dinner often calls for a centerpiece that feels grand but doesn’t require you to be tethered to the stove all day. Learning how to slow cook a ham in a slow cooker is arguably the most efficient way to achieve a succulent, flavor-packed protein while freeing up your oven for side dishes like roasted vegetables or fresh rolls.
While hams are typically sold pre-cooked, the goal of the slow cooker isn’t to “cook” the meat in the traditional sense, but to gently reheat it while infusing it with moisture and glaze. This prevents the common pitfall of a dry, rubbery ham that often occurs with high-heat oven roasting.
Choosing the Right Ham for Your Slow Cooker
Before you start, you need to ensure your meat will actually fit in your appliance. Most standard slow cookers are 6 to 7 quarts, which can comfortably hold a 7 to 10-pound ham.
Bone-In vs. Boneless
A bone-in ham is generally preferred by culinary enthusiasts because the bone adds depth to the flavor and helps keep the meat moist during the long heating process. Plus, you get a ham bone to save for split pea soup later. However, if you are looking for ease of slicing and a more compact fit, a boneless ham is a perfectly viable option.
Spiral Cut vs. Whole
Spiral-cut hams are incredibly convenient because they are pre-sliced. The downside is that they are more prone to drying out because the heat can penetrate between the slices. If you choose a spiral cut, you must be diligent about using enough liquid and keeping the lid sealed tight.
Preparing Your Ham for the Slow Cooker
Preparation is minimal, but there are a few tricks to ensure the flavors penetrate deep into the meat.
The Foil Hack for Large Hams
If you find that your ham is slightly too tall for the lid to close completely, do not panic. You can create a “foil tent.” Simply wrap a large piece of heavy-duty aluminum foil over the top of the slow cooker and crimp it tightly around the edges of the crock to create a seal. This traps the steam inside, which is essential for a moist result.
Scoring the Meat
If you are using a non-spiral cut ham, use a sharp knife to score the surface in a diamond pattern about 1/2 inch deep. This allows the glaze to seep into the meat rather than just sitting on the surface fat.
Crafting the Perfect Glaze and Cooking Liquid
A slow-cooked ham needs a balance of sweetness, acidity, and salt. Since ham is naturally very salty, your glaze should lean into sugars and spices.
Classic Brown Sugar and Maple Glaze
A mixture of brown sugar, maple syrup, and a splash of pineapple juice or apple cider is the gold standard. The sugars will melt down and create a syrupy lacquer that coats every inch of the meat.
Adding Aromatics
Don’t be afraid to toss in some whole cloves, star anise, or even a few cinnamon sticks. These woody spices complement the smoky profile of the pork beautifully. For a bit of tang, a tablespoon of Dijon mustard whisked into your glaze can cut through the richness.
The Slow Cooking Process
Timing is everything. Even though it is called a “slow cooker,” leaving a ham in for too long can turn the texture mushy.
Temperature Settings
For the best results, always cook on the Low setting. High heat tends to draw moisture out of the muscle fibers too quickly. You want the internal temperature to reach 140°F, which is the standard food safety temperature for reheating fully cooked ham.
Estimated Cooking Times
- 7-8 Pound Ham: 4 to 5 hours on Low.
- 9-10 Pound Ham: 5 to 6 hours on Low.
- Boneless Ham: Check at the 3 or 4-hour mark as they often heat faster.
Basting and Finishing Touches
About halfway through the cooking time, take a large spoon and baste the ham with the juices that have collected at the bottom of the pot. This ensures the top of the ham doesn’t dry out.
The Optional Broil
If you crave that crackly, caramelized exterior that you see in magazine photos, you can remove the ham from the slow cooker once it hits 140°F. Place it on a baking sheet, brush on a fresh layer of glaze, and pop it under your oven broiler for 3 to 5 minutes. Watch it closely, as the sugar can go from caramelized to burnt in seconds.
Serving and Storage Tips
Once the ham is finished, let it rest for at least 15 to 20 minutes before carving. This allows the juices to redistribute so that every slice remains moist.
Utilizing the Leftover Liquid
The liquid at the bottom of the slow cooker is liquid gold. Strain it and simmer it in a saucepan to reduce it into a thick gravy or sauce to serve alongside the meat.
Storage
Leftover ham can be kept in the refrigerator for up to 4 days or frozen for up to 2 months. It’s perfect for breakfast hashes, sandwiches, or diced up into an omelet.
FAQs
Can I put a frozen ham in the slow cooker?
It is not recommended to put a completely frozen ham into a slow cooker. Because the slow cooker takes a long time to reach a safe temperature, the meat may sit in the “danger zone” (between 40°F and 140°F) for too long, which allows bacteria to grow. Always thaw your ham in the refrigerator for 24 to 48 hours before cooking.
How much liquid should I add to the bottom?
You don’t need much. Unlike a pot roast, you aren’t trying to braise the ham. About 1/2 cup to 1 cup of liquid (juice, broth, or even ginger ale) is sufficient to create the steam needed to keep the environment moist.
Why did my ham turn out tough?
Toughness usually results from cooking the ham on the High setting or leaving it in for too many hours. Once a pre-cooked ham exceeds an internal temperature of 145°F or 150°F, the proteins begin to tighten and the moisture evaporates, leading to a leathery texture.
Should I trim the fat before putting it in the pot?
You can trim some of the excessively thick layers of “fat cap,” but leave a thin layer. Fat acts as a natural baster as it melts, providing flavor and moisture. You can always trim the fat off individual slices once the ham is served.
What is the best liquid to use for the base?
Pineapple juice is a favorite because the enzymes help tenderize the meat slightly, and the sugar aids in caramelization. Apple cider, orange juice, or even a dark cola are also excellent choices for adding a complex sweetness to the profile.