Pork tenderloin with apples and onions is a delicious and comforting dish that is perfect for fall. To make this recipe, you will need a pork tenderloin, apples, onions, garlic, chicken broth, apple cider vinegar, and thyme. First, preheat your oven to 375°F. Then, season the pork tenderloin with salt and pepper and sear it in a large oven-safe skillet over medium-high heat. Remove the pork tenderloin from the skillet and set it aside. Add the apples, onions, and garlic to the skillet and cook until they are softened. Add the chicken broth, apple cider vinegar, and thyme to the skillet and bring to a simmer. Return the pork tenderloin to the skillet and transfer it to the oven. Bake for 20-25 minutes, or until the pork tenderloin is cooked through. Let it rest for a few minutes before slicing and serving.