How long to bake a 3.78 pound frozen pork loin roast?

1. Thaw the pork loin roast completely in the refrigerator or by submerging it in cold water for several hours.

2. Preheat the oven to 350°F (177°C).

3. Place the pork loin roast in a roasting pan and cover it with foil.

4. Bake the roast in the preheated oven for 1 hour and 15 minutes.

5. Remove the foil and baste the roast with the pan juices.

6. Continue baking the roast for an additional 30 minutes, or until the internal temperature reaches 145°F (63°C).

7. Let the roast rest for 10 minutes before carving and serving.

Note: Cooking times may vary depending on the type of oven and the thickness of the roast. Always use a meat thermometer to ensure the roast is cooked to your desired doneness.