The butt portion of a ham is often considered the “glamour cut” of the pig. It is the upper part of the leg, rounded and meaty, boasting a richer flavor and more tender texture than the lower shank portion. However, many home cooks shy away from it because of the bone. Unlike the straight, predictable bone in the shank, the butt portion contains the aitch bone (part of the hip) and the femur, which can feel like navigating a culinary labyrinth if you aren’t prepared.
Learning how to bone a butt portion of ham is a transformative skill for any kitchen enthusiast. Removing the bone yourself allows for more even cooking, easier carving at the table, and provides you with a high-quality ham bone for the best split pea soup or stock you’ve ever tasted. This guide will walk you through the process from the first incision to the final trim.
Essential Tools for Deboning
Before you start, you need the right gear. Attempting to debone a ham with a dull or improper knife is not only frustrating but also dangerous.
The Boning Knife
The star of the show is a sharp, flexible boning knife. These knives typically have a thin blade about five to seven inches long. The flexibility allows the blade to follow the natural curves of the bone, ensuring you leave as much meat as possible on the roast rather than the bone.
A Sturdy Cutting Board
Ham can be slippery. Use a large wooden or heavy-duty plastic cutting board. If your board tends to slide around, place a damp paper towel or a silicone mat underneath it to anchor it to your countertop.
Kitchen Twine
Once the bone is out, the ham will have a large cavity. To ensure it cooks evenly and retains a beautiful shape, you will need butcher’s twine to tie the roast back into a compact cylinder.
Identifying the Anatomy of the Butt Portion
Understanding what is inside the meat is half the battle. The butt portion contains the pelvic bone (aitch bone) and the ball-and-socket joint that connects to the femur.
The aitch bone is somewhat flat and irregularly shaped, often visible at the wider end of the ham. The femur runs through the center. Your goal is to work your knife around these structures with minimal “hacking.” Think of it as a surgical procedure rather than a demolition project.
Step-by-Step Guide to Removing the Bone
Initial Inspection and Positioning
Place the ham on your cutting board with the cut side (the side where it was separated from the rest of the leg) facing up. You should see the round end of the leg bone. Feel around the wider end of the ham to locate the edge of the hip bone.
Releasing the Aitch Bone
Start at the wide end where the hip bone sits. Using the tip of your boning knife, make short, controlled strokes to follow the contour of the bone. Keep the blade pressed against the bone at all times. You want to feel the steel “scraping” the calcium.
Slowly work your way around the edges of the pelvic bone, peeling the meat back as you go. Once you have exposed enough of the bone to get a grip, you can use your non-dominant hand to pull the bone away from the meat while the knife severs the connective tissue.
Navigating the Ball Joint
The trickiest part of the butt portion is the ball-and-socket joint. Once the aitch bone is mostly free, you will reach the point where it connects to the femur. Use the tip of your knife to cut through the heavy ligaments holding the joint together. Once these are severed, the aitch bone should pull away completely. Set this aside—do not throw it away, as it is packed with flavor for stocks.
Extracting the Femur
With the hip bone gone, you are left with the long femur. Insert your knife at the top of the bone and run the blade down the length of it. Use your fingers to feel where the bone lies.
Make a long, clean incision through the meat to expose the shaft of the femur. Again, use the tip of your knife to “circle” the bone, staying as close to the hard surface as possible. Once you reach the other end of the ham, cut through the remaining connective tissue and lift the bone out.
Trimming and Preparing for the Oven
Now that the ham is “boneless,” you have a large piece of meat that might look a bit ragged. Don’t worry; this is where the preparation for roasting begins.
Fat Management
Look at the exterior of the ham. While fat provides flavor and moisture, an excessively thick fat cap won’t render down properly. Trim the fat until it is about a quarter-inch thick. This allows any glaze you apply later to actually penetrate the meat rather than just sitting on top of a layer of gristle.
Squaring the Meat
If there are any loose, thin flaps of meat from the deboning process, you can trim them off (save them for omelets!) or tuck them into the cavity. The goal is to create a uniform shape so that the heat of the oven hits the meat evenly.
Tying the Roast
This is a crucial step. Open the ham where the bone used to be and season the interior if you like. Then, roll the ham back into its original shape. Using your kitchen twine, tie the ham at one-inch intervals. Start in the middle to anchor the shape, then work your way to the ends. Tie it snugly, but not so tight that it cuts into the meat. This ensures that the ham doesn’t “splay” out while cooking, which would lead to dry edges.
Cooking Tips for a Boneless Butt Ham
Without the bone to act as a heat conductor, the cooking dynamics change slightly. A boneless roast often cooks a bit faster per pound than a bone-in roast, but it also requires more attention to internal temperature.
Roast the ham at a moderate temperature, such as 325°F. This allows the internal fats to render without toughening the outer layers of the meat. Use a meat thermometer to ensure accuracy. For a pre-cooked ham, you are simply aiming for an internal temperature of 140°F. If you are starting with a fresh (raw) ham, you must cook it until it reaches 145°F, followed by a three-minute rest.
Utilizing the Leftovers
The byproduct of deboning—the bones and the trim—is a culinary goldmine. The aitch bone and femur are loaded with marrow and collagen.
Simmer these bones with onions, carrots, celery, and bay leaves for several hours to create a rich ham stock. This stock is the perfect base for navy bean soup, collard greens, or even a savory risotto. If you aren’t ready to cook with them immediately, wrap the bones tightly in plastic wrap and freeze them; they will stay good for up to six months.
Frequently Asked Questions
Is it cheaper to buy a bone-in ham and bone it myself?
Generally, yes. You often pay a premium for the labor involved in “boneless” hams sold at the grocery store. Furthermore, many commercial boneless hams are “processed,” meaning they are pressed together from various pieces of meat. By deboning a butt portion yourself, you get a solid, natural muscle roast and a free soup bone for the same price.
Can I debone a ham after it has been cooked?
You can, but it is much more difficult to get a clean result. When the meat is cooked, it becomes tender and flaky, making it hard to navigate the bone without the meat falling apart. Deboning while raw allows you to tie the meat into a uniform shape, resulting in much cleaner slices for serving.
What if I accidentally cut too deep into the meat?
Don’t panic. Ham is very forgiving. If you make a deep gouge or a “wrong” cut, simply tuck that piece of meat back into the center when you are tying the roast with twine. Once it is cooked and sliced, no one will ever know.
How do I know if I have a butt portion or a shank portion?
The butt portion is the upper, rounded end of the leg. It is typically larger and contains the hip bone. The shank portion is the lower, tapered end of the leg and contains a single, straight bone. The butt portion is usually more tender and has a higher fat content.
Do I need to sharpen my knife during the process?
If you are deboning several hams or a particularly large one, you might notice the blade losing its edge as it scrapes against the bone. It is a good practice to give your knife a few swipes on a honing rod halfway through the process to maintain that surgical precision.