5 from 6 votes
Pork Butt Roast/Boston Butt Roast with Mushroom Gravy
Prep Time
10 mins
Cook Time
8 hrs
Total Time
8 hrs 10 mins

How to cook a pork butt roast, also known as a Boston butt roast, in your crock pot with a delicious mushroom gravy to enjoy as well.

Course: Main Course
Cuisine: American
Servings: 6
Calories: 323 kcal
  • 3-4 lbs pork butt roast also known as a Boston butt roast
  • 1 tbsp minced garlic
  • 1 tsp dried thyme
  • 1 tsp dried sage
  • 2 teaspoons sea salt flakes
  • 1 teaspoon pepper
  • 3-4 cups white or cremini mushrooms sliced
  • 1 large white onion peeled and cut into quarters
  • 1 1/2 cups chicken broth
  • 2 bay leaves
  1. Pat the pork butt roast dry with paper towels. Place in the bottom of your slow cooker. 

  2. Take thyme, sage, minced garlic, salt and pepper and sprinkle onto the roast in an even layer.

  3.  Arrange the mushrooms and onions around the roast in an even layer. Pour the chicken broth into the bottom of the slow cooker. 

  4. Place the lid on top and cook the roast on low for 7-8 hours. 

  5.  To make the mushroom gravy, transfer the roast to a serving platter and cover with foil to keep hot. Remove the bay leaves and if wanted, the large pieces of onion ( I leave them in though.)

  6. Whisk together 2 tbsp of cornstarch with 1/3 cup of water. Slowly whisk into the mushroom mixture in the bottom of the crock pot until it's smooth and creamy. You may not have to use all of the mixture, just add enough to bring it to the desired consistency.

  7.  Slice the roast and serve with the gravy on top. 

Recipe Notes

Nutritional data will vary based on the size of roast and brand of ingredients used.

You can cook a larger roast if wanted for this recipe as well. Leftovers are great!


Nutrition Facts
Pork Butt Roast/Boston Butt Roast with Mushroom Gravy
Amount Per Serving
Calories 323 Calories from Fat 81
% Daily Value*
Fat 9g14%
Saturated Fat 2g10%
Cholesterol 142mg47%
Sodium 1104mg46%
Potassium 1074mg31%
Carbohydrates 4g1%
Sugar 1g1%
Protein 52g104%
Vitamin C 6.9mg8%
Calcium 27mg3%
Iron 1.9mg11%
* Percent Daily Values are based on a 2000 calorie diet.