When you are looking for an easy, high-protein meal that feels like a special occasion dish, this Slow Cooker Herb & Garlic Pork Tenderloin delivers incredible flavor with minimal effort. Featuring a whole pork tenderloin seasoned with garlic powder, dried rosemary needles, kosher salt, and black pepper simmered in a savory broth, every single slice comes out tender and juicy.
Cooking pork tenderloin in a slow cooker allows the subtle savory liquid and aromatic herbs to infuse the lean meat as it cooks. The result is a delicate, lean pork roast that slices cleanly into tender medallions, paired with a light, flavorful pan juice that can easily be reduced into a glossy herb gravy.
Serve this fragrant herb-crusted pork tenderloin warm alongside roasted root vegetables, creamy mashed potatoes, or a fresh garden salad for a complete family dinner!
Why You’ll Love This Recipe
- Lean & Healthy: Pork tenderloin is a lean, high-protein cut that becomes tender when slow-cooked in savory broth.
- Aromatic Herb Seasoning: Dried rosemary, garlic, and black pepper create a classic, fragrant herb rub.
- Effortless Prep: Simply place the seasoned tenderloin into the slow cooker, pour in the liquid base, and set the timer.
- Easy to Slice: Yields smooth, elegant pork medallions that pair wonderfully with a variety of side dishes.
Ingredient Notes
- Pork Tenderloin: A 1.5 to 2 lb fresh pork tenderloin (trimmed of excess silverskin).
- Herbs & Seasonings: Dried rosemary needles (or fresh rosemary leaves), garlic powder, onion powder, kosher salt, and freshly cracked black pepper.
- Liquid Base: Low-sodium chicken or beef broth combined with 1 tablespoon of soy sauce or Worcestershire sauce for depth of umami.
- Aromatics: Minced fresh garlic cloves or garlic paste sprinkled over top.
- Thickener (Optional): Cornstarch mixed with cold water to transform the cooking juices into a warm herb gravy.
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Step-by-Step Instructions
- Prep the Pork Tenderloin: Pat a 1.5 to 2 lb pork tenderloin dry with paper towels. Trim away any tough white silverskin using a sharp knife.
- Season the Tenderloin: In a small bowl, mix together 1 teaspoon garlic powder, 1/2 teaspoon onion powder, 1 teaspoon dried rosemary, 1 teaspoon kosher salt, and 1/2 teaspoon black pepper. Rub the seasoning blend evenly over all sides of the pork tenderloin.
- Prepare the Slow Cooker: Pour 1/2 cup low-sodium broth (chicken or beef) and 1 tablespoon soy sauce into the bottom of your slow cooker insert.
- Add the Pork: Place the seasoned pork tenderloin directly into the liquid inside the slow cooker insert. Sprinkle additional dried rosemary needles and minced garlic across the top of the tenderloin.
- Slow Cook to Tenderness: Cover with the lid and cook on LOW for 2 to 3 hours (or on HIGH for 1.5 to 2 hours) until an instant-read meat thermometer inserted into the thickest part reads 145°F (63°C). (Note: Pork tenderloin is lean and cooks faster than pork shoulder, so avoid overcooking!)
- Rest the Meat: Transfer the cooked pork tenderloin to a cutting board, tent loosely with aluminum foil, and let rest for 5 to 10 minutes to allow the juices to redistribute.
- Make the Herb Pan Sauce (Optional): Pour the liquid from the slow cooker into a saucepan over medium heat. Whisk in 1 tablespoon cornstarch dissolved in 1 tablespoon cold water and bring to a gentle simmer for 3 minutes until thickened into a warm gravy.
- Slice and Serve: Slice the tenderloin into 1/2-inch thick medallions, spoon the warm herb sauce over the top, and serve warm!Tip: Keep an eye on the internal temperature starting at the 2-hour mark on LOW to keep the lean tenderloin juicy and tender.
Nutrition Snapshot
- Calories: ~280 kcal
- Protein: 36g
- Carbohydrates: 3g
- Fat: 12g
(Note: These values are approximate estimates based on standard ingredient calculations per serving.)
Storage & Reheating
Store leftover pork tenderloin slices in an airtight container with some of the cooking juices in the refrigerator for up to 3 days.
Reheat gently in a covered skillet over low heat with a splash of broth or butter until warmed through without drying out the lean meat.
Budget Note
Preparing a home-cooked herb pork tenderloin dinner costs approximately $3.50 to $4.75 per serving, making it an affordable yet elegant main dish.
Recipe Variations
- Balsamic Herb Glaze: Add 2 tablespoons of balsamic vinegar and 1 tablespoon of brown sugar to the cooking broth for a sweet, tangy glaze.
- Garlic Butter Herb Roast: Top the pork tenderloin with 2 tablespoons of butter pats right before closing the slow cooker lid.
- Honey Dijon Herb Pork: Whisk 1 tablespoon Dijon mustard and 1 tablespoon honey into the broth before adding the pork.
Frequently Asked Questions
What is the difference between pork loin and pork tenderloin? Pork tenderloin is a long, thin, narrow cut of meat that cooks quickly and is very lean, whereas pork loin is a wider, thicker roast. Pork tenderloin requires much shorter cooking times in the slow cooker!
How do I prevent pork tenderloin from becoming dry in a slow cooker? Because tenderloin is very lean, it should not be cooked for 8 hours like pork shoulder. Cook on LOW for just 2 to 3 hours and check the internal temperature with a thermometer to remove it as soon as it reaches 145°F (63°C).
Related Recipes
- Slow Cooker Honey Mustard Pork Roast — Sweet and zesty slow-cooked pork shoulder.
- Garlic Butter Pan-Seared Pork Chops with Gravy — Quick and golden pan-seared pork chops.
- Slow Cooker Tender Beef Roast and Gravy with Mashed Potatoes — Classic slow-cooked beef roast served over mashed potatoes.