Slow Cooker Pork Tenderloin and Potatoes

4.71 from 17 votes

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Slow cooker pork tenderloin and potatoes make the perfect simple dinner with moist and flavorful pork and crispy potatoes.

Slow Cooker Pork Tenderloin Recipe

You all know I adore and live for a solid slow cooker recipe, and this one is here to woo and wow you. It’s a simple meal, but don’t let that discourage you from firing up the slow cooker and giving it a try. What it offers in flavor and heartiness makes it seem like a much more complicated recipe than it actually is!

But because it’s SO simple and so satisfying, I’m certain it’ll become one of those meals you make again and again. The cook time is about 4 hours, so it’s perfect to throw into the crockpot right before the kids come clamoring in the door after school or for Sunday meals — I let it cook away and work its magic while we go to church, OR I put it on after church and take a nap! What a dream life, right? I can’t wait to hear what you think of this meal.

Why You’ll Love This Recipe

  • One Pot Simplicity: you cook the potatoes in a foil pouch instead of all together – they don’t get soggy because they aren’t sitting in juices. You can use whatever potatoes you like and you can even use sweet potatoes or winter squash; they all work well.
  • Perfect Pork: One of the best things about cooking pork in the slow cooker is that it doesn’t dry it out like other cooking methods can.
  • Hands-Off Cooking: You can serve a hearty, delicious meal without much prep time.

Ingredients

  • Smithfield Prime Pork Tenderloin
  • Kosher Salt & Pepper
  • Spices
  • Minced Garlic
  • Olive Oil
  • Onion
  • Soy Sauce
  • Worcestershire Sauce
  • Potatoes
  • Butter
  • Parsley

See the recipe card below for full information on ingredients and quantities 

Slow Cooker Pork Tenderloin and Potatoes make the perfect simple dinner with moist and flavorful pork and potatoes that aren't over cooked or soggy.
  • You can easily substitute 1.5 pounds of chicken breasts for the pork.
  • If you don’t care for rosemary, you can substitute another herb like thyme, sage, oregano, or tarragon that will still go with the rest of the ingredients.

How to Make Slow Cooker Pork Tenderloin and Potatoes

Step #1. Place one pork loin on a large plate. (Save the other for another recipe.) Mix the spices, salt, pepper, and garlic in a small bowl. Rub the pork with olive oil and then coat with spices.

Step #3. Make a foil pocket next to the pork. Fill the foil with the cubed potatoes and the butter.

Step #2. Place the onion slices on one side of the bottom of the slow cooker then top with the pork loin. Drizzle pork with soy sauce and Worcestershire sauce.

Step #4. Cover and cook for 4 hours or until cooked through. Remove the pork to a serving platter and the potatoes to a bowl. Mix the butter, salt, and parsley and add to the potatoes. Serve.

How do I make sure the pork and potatoes are done at the same time?

The key to having the pork and potatoes finish cooking at the same time is the size of the potatoes. 1 to 1/2 inch cubes are ideal for perfectly cooked potatoes. You can sub the potatoes for sweet potatoes or winter squash, too! (I tried butternut squash mixed with a few chopped apples the other day and it was excellent with the flavorful pork!)

What other herbs go well with the potatoes?

Mix up the fresh herbs you add to the potatoes based on what’s growing in your garden and what you like. Fresh dill and chives are also delicious.

Can I make gravy from the juice in the slow cooker?

Yes! Just add 3 tablespoons cold water and 1 tablespoon corn starch to a small bowl and whisk together to make a slurry. Bring the juice to a simmer in a small saucepan and add the cornstarch slurry and stir until thickened, making a simple gravy for the pork and potatoes. You can also strain it and serve it “au jus” style.

What is the difference between pork loin and pork tenderloin?

Pork tenderloin and loin are two different parts of the animal. Tenderloin is thinner and smaller, and yields a leaner cut of meat, while loin is wide enough to cut steak-like piece of it. You cook them a lot differently, too, since they’re much different sizes and thickness. Make sure you snag a tenderloin for this recipe!

Expert Tips

  • An instant-read thermometer will change your meat cooking game. I highly recommend getting one. Lots of slow cookers also come with a cooking probe that will alert you when a predetermined temperature is reached. Either will work well for this recipe. For juicy, perfectly cooked pork, 145°F is the magic number. After meat gets to that temperature, and after a 3-minute rest, your fresh pork is ready and you have a juicy, tender, delicious meal.
  • When slicing your pork (or any cut of meat), make sure you are cutting across the grain. That will help the meat be more tender when you chew! It is easy to do with a pork tenderloin – for some other cuts of meat, you’ll have to look more closely.

What to Serve with Slow Cooker Pork Tenderloin and Potatoes

  • I like to serve this recipe with some green beans and frozen peaches for a rounded out meal.

More Pork Recipes to Consider

4.71 from 17 votes

Slow Cooker Pork Tenderloin and Potatoes

Slow Cooker Pork Tenderloin and Potatoes make the perfect simple dinner with moist and flavorful pork and crisp potatoes.
Prep: 10 minutes
Cook: 4 hours
Total: 4 hours 10 minutes
Servings: 6

Ingredients 

  • 1 Smithfield Prime Pork Tenderloin, about 1.5 pounds
  • 2 teaspoons kosher salt
  • 1 teaspoon dried rosemary
  • 1 teaspoon celery seed
  • 1/2 teaspoon ground black pepper
  • 1-3 cloves garlic, minced
  • 1 tablespoon olive oil
  • 1 small to medium onion cut into 4 large slices
  • 3 tablespoons soy sauce
  • 2 tablespoons Worcestershire sauce
  • 2 to 2.5 pounds potatoes, scrubbed and cut into 1 to 1.5 inch cubes
  • 3 tablespoon butter, divided
  • 1 tablespoon chopped parsley
  • additional salt and pepper to taste
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Instructions 

  • Open the package of pork and remove one tenderloin. Save the second for another meal. Place the pork on a large plate.
  • Mix together the salt, rosemary, celery seed, black pepper, and minced garlic in a small bowl.
  • Rub the pork all over with the olive oil and then coat it well with the spice mixture on all sides.
  • Place the sliced onion on the bottom of the slow cooker, favoring one side of the slow cooker, and then place the pork on top of the onion.
  • Gently drizzle the soy sauce and Worcestershire sauce over the pork.
  • Use a large piece of foil to make a pocket for the potatoes next to the pork. Be careful to make it large enough so that the pork juice won’t get into the foil.
  • Fill the foil with the cubed potatoes and add 1 tablespoon of butter.
  • The pork should be off to one side but not completely touching the side of the slow cooker.
  • Add the lid and cook for 3.5 to 4 hours on LOW or until the pork registers 145 degrees using an instant-read thermometer or the probe on your slow cooker.
  • When the pork is cooked through, remove from the oven and allow to rest for 3 minutes.
  • While the pork is resting, place the potatoes in a large bowl and add the remaining 2 tablespoons of butter, chopped parsley and salt to taste. Stir to combine.
  • Slice the pork and place it on a serving platter. Serve right away with buttered potatoes on the side.

Video

Notes

  • The key to having the pork and potatoes finish cooking at the same time is the size of the potatoes. 1 to 1 1/2 inch cubes are ideal for perfectly cooked potatoes.
  • Mix up the fresh herbs you add to the potatoes based on what’s growing in your garden and what you like. Fresh dill and chives are also delicious.
  • The juice that is left in the bottom of the slow cooker is delicious. Strain it and serve it “au jus” style or add it to a sauce pan to make a gravy. Add 3 tablespoons cold water and 1 tablespoon corn starch to a small bowl and whisk together to make a slurry. Bring the juice to a simmer and add the cornstarch slurry and stir until thickened, making a simple gravy for the pork and potatoes.
  • If you don’t like rosemary, you can use thyme, tarragon, oregano, or even sage in the pork rub.

Nutrition

Serving: 1 of 6 servings, Calories: 336kcal, Carbohydrates: 28g, Protein: 28g, Fat: 12g, Saturated Fat: 5g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 5g, Trans Fat: 0.3g, Cholesterol: 89mg, Sodium: 1466mg, Potassium: 1161mg, Fiber: 4g, Sugar: 2g, Vitamin A: 243IU, Vitamin C: 32mg, Calcium: 44mg, Iron: 3mg
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4.71 from 17 votes (3 ratings without comment)

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79 Comments

  1. Julie says:

    5 stars
    This is by far the most flavorful pork I’ve made. Leftovers the next day as bbq pork were delicious! I just put the potatoes in next to the pork to soak up all the flavor. Definite keeper of a recipe! Thank you!!

  2. KarenJ says:

    So good! I cooked it a little longer than 4 hours because I was out but this recipe is very forgiving. I love meals I can make in the slow cooker. This is definitely a keeper

  3. Margaret says:

    5 stars
    I put the onions in the bottom of the crockpot and then put potatoes and then more onions and then the pork tenderloin on top. It turns out soooo good. 😋 😋

    1. Rhonda Meloche says:

      Did it still take 4 hours?

  4. Stacey says:

    Hi there. Can I fill the pot with the pork and put potatoes on top? Thank you.

    1. Melissa says:

      Yep, it’ll just take a bit longer to cook!

  5. April says:

    Can you make this with preseasoned pork tenderloin

    1. Melissa says:

      Yes! It works really well and speeds up the prep time. I’ve had great luck!

  6. Jess says:

    4 stars
    Hey! First time making this recipe ..and pork tenderloin for that matter and it didn’t disappoint, the family loved it! The tenderloin turned out great…the potatoes however were a little undercooked and blend. So I did pop them in the oven for a bit after and put some more spices on them with the butter/salt/parsley as directed.

    1. Sylvia Moore says:

      Wanted to know what size slow cooker you used. I have a 3 qt. This may be too small.

    2. Melissa says:

      I have a 6 quart, I bet it would be pretty tight in a 3 qt.

  7. Alex says:

    5 stars
    I plan to make this with just the pork as I wanna do a different potato recipe. I made this before and it was amazing! Would I still want to do this 4 hours on low?

    1. Melissa says:

      Yep, it’ll still be about that long for the pork!

  8. Kim says:

    Hi, I have pork loin roast center cut boneless can I make this recipe in my slow cooker It’s weights1.73 and do I slow cook it on low for 4 hrs. Thanks

    1. Melissa says:

      Sounds like just the right cut and that time should be perfect!

  9. Kia says:

    Can you make this with a frozen pork tenderloin? If so, what would the best way to do so.

    1. Melissa says:

      Hmmm, I bet you could, I’d just cook it an hour or two longer than it says.

    2. Foodie says:

      You should never cook meat from frozen in a slow cooker! It takes too long to heat through and keeps the meat in the danger zone for too long, which risks food borne illnesses!

  10. Kathryn says:

    What did you do with the frozen peaches?

    1. Melissa says:

      I just served them along with green beans to go with the meal of pork and potatoes!