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.
In a small bowl, combine the butter, oil, garlic, rosemary, salt and pepper, and mix until a paste forms.
Roast in the pre-heated oven for 15 minutes, then turn the oven temperature down to 300° F. Do not open the oven!
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.
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.