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Garlic Butter Pork Tenderloin

Juicy garlic butter tenderloin cut up on cutting board.

Pork tenderloin, seared to perfection, finished in the oven, and then topped off with a decadent garlic butter. Would you believe this recipe is ready in about 30 minutes and it’s naturally low in carbs? 

I snagged a couple of pork tenderloins at the grocery store the other day. They were on sale and I’m all in for pork, so I couldn’t pass them up.

Of course, I had no idea what I was going to do with the pork tenderloin when I got it home, but I figured an idea would come to me.

It didn’t. That’s the way my brain works – I’m full of ideas until I need them. 😉

I asked Chad what he was feeling for dinner one night and he said he wanted something extra buttery and extra garlic-y, so I just went for it, you guys.

Garlic Butter Pork Tenderloin. Can you handle this amount of goodness?

This looks and tastes like a fancy restaurant meal, but it was one of the easiest things I’ve made in a long time and it was ready in about 30 minutes.

best pork tenderloin recipe on cutting board

How to make pork tenderloin:

First up, grab a heavy bottomed, oven safe skillet. I used cast iron.

Preheat the oven to 425 degrees.

Seasoned raw pork tenderloin in skillet.

This oven pork tenderloin starts off with a little Italian seasoning, salt, and pepper. Just sprinkle it all over on both sides.

Add some olive oil to your hot skillet. Once the oil is hot, sear the pork on both sides.

seared pork tenderloin in skillet

We’re locking in the juice and adding a ton of flavor by searing the meat before putting it in the oven. Don’t skip this step!

For baked pork tenderloin, we’re going to need to do a little oven time.

Pork tenderloin cooking time:

Pop the whole skillet into the hot oven and let it cook for about 15 minutes, depending on the level of doneness you prefer.

Did you know that pork isn’t required to be cooked to well done?

I like to cook my pork until it’s just oh so slightly pink in the center, so I pull it from the oven at 145 degrees and let it rest for about 5 minutes before cutting.

oven roasted tenderloin in cast iron skillet

You can safely pull your pork anytime after 145 degrees and up to 160, if you like it well done. Just allow the pork tenderloin to rest for at least 5 minutes before slicing.

What to season pork tenderloin with:

Garlic butter, of course!

We’ve already started it out with a little Italian seasoning, salt, and pepper, but now we’re going big and bold.

Seasoned tenderloin cooking in a cast iron skillet.

Once your pork is cooked and rested, melt together a little butter, a lot of garlic, some onion powder, and fresh parsley.

Pour it right over the top of your tenderloin.

Can’t you just smell it when you look at the photos? So. Good.

What to serve with pork tenderloin:

There are so many delicious low carb side dishes that would work with this pork tenderloin!

My fried radishes are a great sub for potatoes and I think they work perfectly with this tenderloin recipe.

Keto coleslaw is always a win with any type of meat.

Brussels sprouts and bacon would make a lovely side dish and so would this cauliflower mac and cheese.

You could also keep it simple with a fresh green salad or some zoodles tossed in a little sugar-free marinara.

oven roasted pork tenderloin on wood cutting board

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sliced pork tenderloin on wood cutting board

Garlic Butter Pork Tenderloin

This pork tenderloin feels like a fancy restaurant meal, but it's ready at home with minimal work in just 30 minutes.

Yield 6 servings
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes

Ingredients

  • 1 ½ pounds pork tenderloin
  • 1 tablespoon Italian seasoning
  • 1 teaspoon salt
  • 1 teaspoon pepper
  • 2 tablespoon avocado oil
  • ¼ cup melted butter
  • 4 cloves garlic, minced
  • ½ teaspoon onion powder
  • 1 tablespoon chopped parsley

Instructions

  1. Preheat oven to 425 degrees.
  2. Season all sides of the tenderloin with Italian seasoning, salt, and pepper.
  3. Heat oil in a large heavy-bottomed skillet, such as cast iron, over high heat.
  4. Add the pork to the skillet and sear for 2-3 minutes per side.
  5. Transfer skillet to the oven and bake for 15 minutes or until the pork reaches an internal temperature of 145 degrees.
  6. Remove from oven and let rest for 5 minutes.
  7. While pork is resting, whisk together the butter, garlic, onion powder, and parsely.
  8. Pour the garlic butter over the pork.
  9. Slice pork into 1-inch thick slices and serve.

Notes

If you don't have an oven safe skillet, transfer from the skillet to a baking dish and proceed with baking.

Pork is safe to eat while still pink in the center. It does tend to dry out quickly when cooked well done, so we recommend cooking to 145 degrees so that the pork is juicy and tender.

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Nutrition Information:

Yield: 6 Serving Size: 1
Amount Per Serving: Calories: 280Total Fat: 17gSaturated Fat: 7gTrans Fat: 0gUnsaturated Fat: 8gCholesterol: 103mgSodium: 479mgCarbohydrates: 1gNet Carbohydrates: 1gFiber: 0gSugar: 0gProtein: 30g

All information and tools presented and written within this site are intended for informational purposes only. This information is provided as a courtesy and there is no guarantee that the information is accurate.

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90 thoughts on “Garlic Butter Pork Tenderloin”

  1. Had stopped eating pork (inhumane treatment of animals) but I found a company whose farmers are kinder and gentler to their animals! Just used your recipe on a pork tenderloin and it is yummy!!! Thank you so much!

  2. Yum! I made this tonight and loved it. I don’t get tenderloin very often, but, when I do, this will be how I make it. It turned out perfectly. Thank you!

  3. I have made this twice and delish. My question is I have a 3 pound roast. Do I increase cooking time to 30 minutes or after 15 just check internal temp?

    1. Karly Campbell

      I would just keep an eye on the internal temp. It’s hard to say how much longer it will take. 🙂

  4. Karly, I have just recently found you. EVERYTHING and I mean EVERYTHING you have shared has been amazing. I have learned how to cook and bake following your amazing recipes. I look forward to your blog and make everything I read.
    My family thinks I am the greatest chef in the world.
    Thank you so much.
    Mimi

    1. Karly Campbell

      Oh gosh, that makes me so happy, Mimi! I’m so glad you’re learning to cook and enjoying the recipes! Have a great day! 🙂

  5. Delicious. I made this one pot cooking by doing it in my Ninja Foodi Multicooker. So simple and tasty. Best pork I’ve had in a while.

  6. Outstanding recipe. Thank you! Made it exactly as recipe called for and I wouldn’t change a thing.

  7. George Desser

    Oh my. This was a major hit for my wife and I. Will be making this again. Thank you.

  8. Made this tonight. It was delicious. Cooked it a bit longer to our liking. Will definitely do this again.

  9. Wow! So delicious, the best savory tenderloin I’ve ever had. I have a dairy allergy so used ghee in 1:1 ratio and it was so delicious, also used all the same measurements for a 1 lb loin! Thanks for sharing, adding to the vault to make again 🙂

  10. 15 mins to bake pork after 3 mins browning? are you high? It was of course raw after 15 min. Pork loin this size needs to cook at least 45 mins. Happy Dysentery!

    1. Karly Campbell

      Yikes! You’re going to end up with some dry pork if you cook it at 425 for 45 minutes or more. Pork only needs to be cooked to an internal temp of 145, but you can certainly cooked longer based on personal preference.

      1. Karly, I have just recently found you. EVERYTHING and I mean EVERYTHING you have shared has been amazing. I have learned how to cook and bake following your amazing recipes. I look forward to your blog and make everything I read.
        My family thinks I am the greatest chef in the world.
        Thank you so much.
        Mimi

  11. I am making this for the fourth time tonight. It is now one of my family’s favorites! Thank you so much for sharing this recipe! 🙂

  12. Andrea Wilson

    Just made this! It is wonderful!! The only thing I did different is used lemon pepper in place of salt ( since it has salt in it) and squeezed some lemon juice on the tenderloin before putting in the oven in the skillet. Also, I didn’t have fresh parsley so I used fresh rosemary finely chopped in the garlic butter sauce. This is so delicious!! Thank you for the recipe!!

  13. Andrea M Scott

    Beyond delicious! Loved how simple it was to make! My new ‘go to’ recipe!

  14. Bonnie Peterman

    Just made this. Didn’t change a thing. It was delicious. Definitely a keeper.

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