1. Start by seasoning your pork tenderloin generously with salt, pepper, smoked paprika, garlic powder, onion powder, and cinnamon. This seasoning blend, inspired by flavors I grew up with, adds layers of warmth and depth.
2. Place the thinly sliced onions at the bottom of your slow cooker. This creates a flavorful bed that keeps the pork moist and adds a subtle sweetness as it cooks.
3. In a small bowl, whisk together the apple butter, Dijon mustard, apple cider vinegar, soy sauce, and chicken broth. This sauce is the heart of the dish, marrying tangy, sweet, and savory notes in perfect harmony.
4. Set the pork tenderloin on top of the onions and pour the sauce evenly over the meat, making sure it’s well-coated.
5. Cover and cook on low for 6 to 8 hours. The slow cooker does all the work here, tenderizing the pork to juicy perfection. I love how this allows me to focus on other parts of my day without worrying about dinner.
6. About 30 minutes before serving, uncover and baste the pork with the sauce to keep it glossy and flavorful.
7. Once done, remove the pork from the slow cooker and let it rest for 5 minutes before slicing. Resting helps the juices redistribute, making each bite tender and juicy.
8. Serve slices drizzled with the apple butter sauce and caramelized onions from the slow cooker.

One of my favorite moments is watching my family’s faces light up when I bring this dish to the table—proof that a simple recipe can create lasting memories.