Foolproof Roasted Pork Tenderloin

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Tenderloin is my absolute favorite cut of pork. It is really hard to mess up making one. It is pretty much foolproof. Also, it is so tender and juicy. Well, today I am sharing how to make a foolproof roasted pork tenderloin.

It all begins with a basic marinade. You make this marinade with olive oil and some seasonings. There is some garlic powder, onion powder, Italian seasoning, oregano, rosemary, salt and pepper mixed in there. Put it all in a large ziploc bag along with the tenderloin.

Foolproof Roasted Pork Tenderloin | realmomkitchen.com

Next, this pork tenderloin needs at least 1 hour to soak in the flavorful marinade. SO be sure to plan your cooking time accordingly. Then it’s time to cook the tenderloin in the oven. Add the tenderloin and all of the marinade to a foil lined baking pan. The results is an amazingly delicious and flavorful roasted pork tenderloin. Just give it 10 minutes to rest. All that’s you have to do now, is slice it and serve it.

Here is what you need to make the

Foolproof Roasted Pork Tenderloin

  • SALT
Foolproof Roasted Pork Tenderloin | realmomkitchen.com

Foolproof Roasted Pork Tenderloin

Real Mom Kitchen

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Prep Time 10 minutes
Cook Time 45 minutes
Total Time 55 minutes
Course Pork
Cuisine American
Servings 4 -6 servings


  • 1 1.5 - 2 lb pork tenderloin
  • olive oil
  • 1 Tbsp garlic powder
  • 1 Tbsp onion powder
  • 1 tsp dried Italian seasoning
  • ½ tsp dried oregano
  • ½ tsp crushed rosemary
  • 1 tsp salt
  • pepper or to taste


  • In a gallon sized zip-loc freezer bag, add olive oil, onion, garlic, Italian seasoning, oregano, dried rosemary, salt, and pepper. Seal and shake ingredients together.
  • Add pork to the bag and seal bag removing as much air as possible. Make sure the pork gets coated with the marinade. Place in refrigerator for at least 1 hour or longer.
  • Preheat oven to 425 degrees. Line a 9 x 13 inch baking dish with aluminum foil. Add the tenderloin to the lined baking dish.
  • Pour the marinade from the bag all over the tenderloin and bake at 425 degrees for 15 minutes.
  • Turn meat over and bake another 15 minutes. Turn meat over once more and bake another 15 minutes. This will cook for a total of 45 minutes.
  • Remove from oven and let rest for 10 minutes.
  • Cut into 1/4" or thicker slices and serve. Serves 4-6.
Tried this recipe?Let us know how it was!

This recipe is adapted from Just a Pinch.

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