This pork loin recipe is a delicious and elegant way to serve this classic cut of meat. The pork is seasoned with salt, pepper, and thyme, then roasted until tender and juicy. The mushroom sauce is made by sautéing sliced mushrooms and onions in butter until they are caramelized and tender. The sauce is then seasoned with garlic, thyme, and cream, giving it a rich and creamy flavor that pairs perfectly with the savory pork.