Oven Roasted Pork Butt

Slow roasted Pork Butt
Slow roasted Pork Butt
Slow roasted Pork Butt. Cooked at 250° for nine to ten hours, then finished in a blazing hot oven to make deliciously crisp fat. Photograph, Ann Fisher

Tender pulled pork that melts in your mouth.

The Boston butt pork roast is an inexpensive cut of meat, when cooked really long over a slow heat produces extraordinary results — making it a great favorite for outdoor smoking aficionados. You can producing amazing results straight from the oven as well.

Served with your favorite sauce — this could be a great barbecue sauce, a ginger-scallion sauce (recipe below), a Korean ssam sauce — or an entire selection of sauces so that your family and friends can choose whichever they like best. Another idea: served pulled pork soft tacos with a fresh mango salsa. Frankly, this is so good, you can serve it anyway that floats your boat, and it will be to die for.

The Boston Butt pork roast, as its commonly known in the United States, comes from the upper blade shoulder of the pig’s front leg — not the hindquarters as the name might lead you to think.

Cuts of Pork Diagram showing Boston Butt shoulder roast
Cuts of Pork Diagram. Image from iStock Photos.

Why is it Called a Boston Butt?

Before the Revolutionary War, butchers in the northeast commonly packed pork hams and shoulders into barrels for storage and transport. These barrels were called butts, derived from the Latin word “buttis,” which means barrel or cask (also where the word “bottle” comes from).  The upper pork shoulder became a Boston specialty and was known around New England as a Boston butt roast.

In the United Kingdom, this cut is called “pork hand and spring”, “pork hand”, or “pork shoulder on the bone.” In Latin America, it’s called “paleta de puerco” — the meat commonly used for carnitas.

The best way to serve it? I think it’s best shredded. And whether you serve it on a buttery Kaiser roll, straight on a plate with an Asian sauce, or fill a corn tortilla with the shredded pork and a few pickled onions, it’s hard to go wrong.

Bone In or Bone Out?

Either will work just fine. If you have a bone-in Boston Butt roast, then you have part of the should blade, and you’ll have to remove the bone before you serve it — but since the pork will be so tender that it pulls apart easily, this hardly difficult. If you have a deboned pork roast, you will need to tie it together with kitchen twine to keep it in a tidy roast shape. Personally, I think it’s easier to have a bone-in roast.

Reverse Sear

What is a reverse sear? Well, common practice for things like pot roast is to sear the meat first, before slowing braising. Here, you’ll be doing the opposite: cooking the Boston butt roast low and slow until it’s pull apart tender. Then you’ll allow the meat to rest — for at least 15 minutes (this could be as long as two hours, depending on when you want to serve it. Then you crank your oven up to a blazing 500° and cook that roast for about 20 minutes to make the fat cap and skin wonderfully crispy. When you take the roast out of the oven, you’ll need to let it rest again for at least 15 minutes to keep from losing all the juices when you pull it apart.

What Should I Cook the Pork Butt Roast In?

Well, I’ve seen a number of people use a shallow cooking pan and a wire rack. But knowing me, this is a recipe for disaster, possibly spilling roast liquid into the oven. I use on oven roasting pan with sturdy handles with a wire rack that’s made for the pan. I just find this much easier to handle taken in and out of the oven. I put a sheet of parchment paper over the rack simply to make it easier to clean later.

Start with a Room Temperature Roast?

If you have time to let the roast come to room temperature before you begin cooking (will take sixty to ninety minutes), the meat will come to a cooking temperature more quickly, and you can reduce the cooking time by about an hour. I started with my roast coming straight out of the refrigerator and it took the roast 10 hours to cook to fork-tender. Frankly, it doesn’t make much difference — you’re waiting around on that meat one way or the other.

How much meat do I need?

Remember that your Boston Butt roast will shrink as it cooks, by approximately 30%. And — if you have a bone-in roast, that will also affect how much meat you have once it’s finished cooking. Here is a link to a handy calculator that will help you figure out how big a roast you should buy, depending on serving size and the number of people you are feeding.

Pulled pork from a Boston butt roast served with some barbecue sauce on the side
Pulled pork served with some barbecue sauce on the side. Photograph, Ann Fisher.

Oven Roasted Pork Butt

Recipe for cooking a bone-in pork shoulder roast in the oven. Low temperature (250°) for eight to ten hours, finished in a hot oven produces succulent tender meat and a crispy delicious fat cap.

  • 8 to 10 lbs. Boston butt pork roast (bone in)
  • Kosher salt (to taste)
  • Black pepper (freshly ground, to taste)
  1. Arrange oven racks to allow space for your roast and pan.

  2. Preheat oven to 250°.

  3. Season roast with Kosher salt and freshly ground black pepper to taste. Place on a rack in a roasting pan.

  4. Place roast in oven and cook for 8 to 10 hours. (Note: if you put the roast into the oven at refrigerator-cold temperature, it will take the longer cooking time listed.)

  5. In the 90 minutes before the end of your estimated cooking time, test roast for doneness. You can tell if it’s done by inserting a fork and turning it 90 degrees or more. If the fork turns very easily, shredding the meat with no resistance, the roast is done.

  6. Remove roast from oven, tent with foil and allow to rest. You can do this from 15 minutes (minimum resting time), up to 2 hours.

  7. Time for the Reverse Sear! Preheat oven to 500°.

  8. Return roast to oven and cook for approximately 20 minutes until fat cap (or skin, if you are lucky enough to get a roast with the skin on) is crispy and puffy.

  9. Remove roast from oven and allow to rest for AT LEAST 15 minutes.

  10. Remove crispy skin and fat, set to the side. Use two forks to shred the meat. 

  11. Serve with desired side sauces. I like to to put bits of the cracklings with each serving.

You will cook your Boston Butt roast for 10 to 11 hours until fork tender. Whether you start with the roast refrigerator-cold or room temp will affect the cooking time. A larger roast will take longer, but not massively longer. It’s about the time that it takes to get the right texture — about allowing the collagen break down so the meat becomes tender.

Recipe from AnnCavittFisher.com.

Watching the Roast Progress

Ginger Scallion Sauce

  • 2 ½ cups scallions (sliced thin)
  • ½ cup ginger (peeled and minced)
  • ¼ cup canola oil
  • 1 ½ tsp. light soy sauce
  • 1 tsp. sherry vinegar
  • ½ tsp. kosher salt
  1. In a mixing bowl, combine scallions, ginger, oil, soy, vinegar, and salt and whisk well.

  2. Taste and adjust salt as needed.

  3. Allow to sit 20 to 30 minutes before serving, to have flavors develop fully. 

Can be stored 1 to 2 days in the refrigerator.

From AnnCavittFisher.com

Ann Fisher

Writer, traveler, and cancer fighter. Get out there and live life!

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