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How to Cook a Boneless Pork Loin Roast

How to Cook a Boneless Pork Loin Roast from start to finish! This roast pork recipe has a delicious crispy garlic butter exterior and a perfectly cooked interior. 

Prep Time
5 mins
Cook Time
1 hr 5 mins
Total Time
1 hr 35 mins
Servings: 8 servings
Calories: 467 kcal
Course: Main Course
Cuisine: American

Ingredients

  • one 4-5 pounds boneless pork loin roast
  • 1/4 cup butter softened
  • 1/4 cup olive oil
  • 7 large garlic cloves minced
  • 1 1/2 tablespoons coarse sea salt
  • 3 tablespoons chopped fresh rosemary
  • 1 teaspoon freshly ground black pepper
  • 1-2 pounds of chopped carrots.potatoes and onions see notes for sized

Instructions

    Cup of Yum
  1. Preheat your oven to 450° F.
  2. In a small bowl, combine the butter, oil, garlic, rosemary, salt and pepper, and mix until a paste forms.
  3. Pat the pork roast with a paper towel to remove excess moisture and then rub 2/3 of the seasoning mixture onto the roast, covering the top and sides.
  4. Place the roast in the bottom of a large roaster.
  5. Place desired vegetables around the roast. Dab the remaining seasoning mixture over the vegetables.
  6. Roast uncovered in the pre-heated oven for 15 minutes, then turn the oven temperature down to 300° F.  Do not open the oven! 
  7. Let the roast continue to roast for another 20-25 minutes per pound of meat, around 100 minutes or until the internal temperature reaches 140° F when a meat thermometer is inserted into the middle.  
  8. Remove the roast from the oven and cover it with foil. Let it rest 10 minutes, then slice and serve.

Notes

  • New USDA recommendations are that pork can now be safely cooked to 145 °F.
  • The vegetables should be cut as small as you see in my photo, my roast cooked for 90 minutes as it was almost 6 pounds.
  • Carrots should be no wider than 1/2 inch, potatoes should be cut around 1/2 inch thick to ensure that they are cooked by the end of the roasting time. Smaller  sized vegetables will cook better.
  •  

Nutrition Information

Calories 467kcal (23%) Carbohydrates 9g (3%) Protein 62g (124%) Fat 18g (28%) Saturated Fat 4g (20%) Cholesterol 172mg (57%) Sodium 1485mg (62%) Potassium 1271mg (36%) Fiber 4g (16%) Sugar 2g (4%) Vitamin A 9645IU (193%) Vitamin C 7.6mg (8%) Calcium 108mg (11%) Iron 3.3mg (18%)

Nutrition Facts

Serving: 8servings

Amount Per Serving

Calories 467

% Daily Value*

Calories 467kcal 23%
Carbohydrates 9g 3%
Protein 62g 124%
Fat 18g 28%
Saturated Fat 4g 20%
Cholesterol 172mg 57%
Sodium 1485mg 62%
Potassium 1271mg 27%
Fiber 4g 16%
Sugar 2g 4%
Vitamin A 9645IU 193%
Vitamin C 7.6mg 8%
Calcium 108mg 11%
Iron 3.3mg 18%

* Percent Daily Values are based on a 2,000 calorie diet.