The National Pork Board website includes a recipe for oven-roasted "awesome" pork tenderloin that takes 10 minutes to prepare and 30 minutes to cook. The recipe serves six, and requires a 2 pound pork tenderloin seasoned with 1/2 teaspoon salt and 1/4 teaspoon pepper, along with butter, balsamic vinegar, garlic cloves and fresh mushrooms for the sauce.
To make the sauce, melt 1 1/2 sticks butter with 4 peeled cloves of garlic and add 8 ounces fresh sliced mushrooms. Bring the mixture to a boil, reduce heat, and simmer for 5 to 6 minutes, stirring often.
Place the seasoned pork tenderloin in a 9x13-inch baking pan. Add 1 tablespoon balsamic vinegar to the mushroom mix, then spoon the sauce over the pork. Roast uncovered at 350 degrees Fahrenheit for approximately 20 to 27 minutes. Remove when the internal temperature reaches 145 degrees Fahrenheit, and rest the pork for 3 minutes before slicing and serving.