Remove the pork loin from the refrigerator about 30 minutes before cooking. Pat it dry using paper towels. Dry meat helps create a beautiful golden crust during roasting.

In a small bowl, mix olive oil, garlic, rosemary, thyme, salt, and pepper. Stir everything well. This mixture will give the pork amazing flavor and aroma.

Rub the herb mixture all over the pork loin. Make sure every side is covered. Massage the seasoning gently into the meat for the best results.

Place onion, carrot, and celery in the roasting pan. Spread them evenly. These vegetables add flavor to the meat and create a tasty base.

Set the seasoned pork loin on top of the vegetables. Pour the chicken stock into the pan. This keeps the roasting environment moist and flavorful.

Preheat your oven to 375°F (190°C). Roast the pork for about 1 hour and 15 minutes. Cook until the internal temperature reaches 145°F (63°C).

Halfway through roasting, spoon some pan juices over the pork. This keeps the surface moist and adds even more flavor to every bite.

Use a meat thermometer to check the temperature. This is the safest and easiest way to know when the pork is perfectly cooked.

Remove the pork from the oven. Cover it loosely with foil and let it rest for 15 minutes. This step keeps the meat juicy and tender.

Slice the pork into thick pieces. Serve with the roasted vegetables and pan juices. Enjoy every delicious bite with your favorite side dishes.