Blogs, Recipes

French Onion Stuffed Pork Tenderloin

If you love French Onion soup, you will LOVE this French Onion Stuffed Pork tenderloin! This smothered pork tenderloin has all the great flavors of a French onion soup, plus juicy pork, and it’s made in one pan! 

Seriously! Brian, my boyfriend said this meal made the Top Ten! It’s savory, it’s gooey, it’s rich, it’s easy, and it’s all done in one pan, which makes for easy clean up! I personally love cast iron so my 10 inch cast iron skillet is my go-to for one pan meals! 

Grab your favorite oven-safe skillet, and let’s get started! 

Preheat the oven to 350°F while you brown the onions and garlic. This will take about 20 minutes. You will use two onions, which may seem like a lot but trust me the onions will reduce as they cook. Cook the onions and garlic in an oven-safe, large skillet. The pork tenderloin will be going back in there. Be sure to keep the cooked onions warm by putting an aluminum tent over them while you prepare the pork loin.

Before butterflying the tenderloin, mix the oil, salt, pepper, and Italian seasoning in a bowl. You will rub this oil mixture on both sides of the tenderloin. To butterfly the pork tenderloin, use a sharp knife to make a horizontal cut about one-third of the way up from the bottom of the tenderloin. Flip open the thicker, top flap (like opening a book). Then, take the knife and cut another horizontal line through the thicker part of the tenderloin to open it up even more (like a trifold). You should now have a flat surface of meat that will hold the flavor of the French Onion Stuffed Pork Tenderloin. Put a piece of plastic wrap over the laid out pork and pound it out to about a 1/3 inch thickness, be careful not to tear it. Once the pork has been butterflied, rub both sides with the oil mixture.

Top the pork tenderloin with half of the cooked onions and half of the shredded cheese. Roll up the pork tenderloin, making sure you wrap up all that goodness inside! Then, using cooking twine, tie the rolled pork tenderloin up to hold in all the ingredients. Heat the same skillet that you used for the onions, melt 3 tablespoons of butter. Next, sear the pork tenderloin on all sides, rotate it about four times to get as much of the pork seared as possible.

Next, cook the pork tenderloin for about 15-20 minutes, making sure the internal temperature is at 145°F. Take the tenderloin out of the oven. Don’t worry, I did not forget about the rest of the onions and cheese. Top the tenderloin with both and broil for about 5 minutes, or until the cheese is melted and golden brown. Sprinkle with chopped parsley and Enjoy!

This recipe pairs great with my french onion risotto and a glass of Scout & Cellar’s 2018 LITTLE JANE PINOT NOIR. Little Jane Pinot Noir is elegant and complex with red plum, black cherry and fresh raspberry balanced by garrigue, Asian spice, and a hint of coffee bean with soft tannins and a lingering finish.

Risotto recipe is at the bottom of this post. 

Ingredients

ONIONS

  • 3 tablespoons butter
  • 2 yellow onions, thinly sliced
  • 3 garlic cloves, chopped
  • 1 tablespoon EVOO
  • Salt & Pepper
  • ½ cup beef broth

PORK TENDERLOIN

  • 1 pork tenderloin
  • 2 tablespoon extra virgin olive oil
  • 1 teaspoon salt
  • 1/4 teaspoon pepper
  • 1 teaspoon Italian seasoning
  • 2 cups shredded gruyere cheese, divided
  • 3 tablespoons butter
  • Chopped Parsley 

Instructions

Preheat the oven to 350°F.

ONIONS

In a large oven-safe skillet over medium-high heat, melt butter.

Add onions, drizzle EVOO over top, stir and saute for 5 minutes.

Add garlic, stir to combine and saute for 2-5 minutes

Add beef broth, stir and cook until the onions are browned and tender (approximately 15-20 minutes). 

Transfer cooked onions to a bowl and tent to keep warm.

PORK LOIN

Butterfly the pork tenderloin. 

Cover the entire cut of meat with plastic wrap and pound to an even 1/3 inch thickness.

In a small bowl, combine oil, salt, pepper, and Italian seasoning. Rub over both sides of pork tenderloin.

Top the pork tenderloin with half of the cooked onions and half of the shredded cheese.

Tightly roll the pork tenderloin to completely enclose all of the fillings.

Using cooking twine, tightly secure the roll.

In the same skillet over medium heat, add the pork tenderloin to the pan and sear on all sides (about 3-5 minutes on each side). Turning the pork tenderloin a total of 4 times.

Transfer the skillet to the oven and cook for 15-20 minutes or until the pork tenderloin reaches an internal temperature of 145 °F. 

Remove pork tenderloin from the oven. 

Increase oven temperature to broil. 

Top pork tenderloin with remaining cheese and onions and cook for 5 minutes or until cheese is melted and golden brown.

Slice and serve warm.

Sprinkle with parsley for garnish.

Risotto Recipe

Ingredients

  • 5½ cups beef stock
  • 2 tablespoons unsalted butter
  • 2 large onions, thinly sliced
  • 2 cups Aborio rice
  • 6 cloves garlic, minced
  • ¼ cup Parmesan cheese
  • ¼ teaspoon salt
  • Pinch black pepper

Instructions

First, heat your stock in a pot until warm, and keep over low heat to make sure it is warm while you work – this helps the rice to better absorb the liquid.

Heat your butter in a large pot  over medium heat. Add in your onions and cook for 15-20 minutes or so, stirring often, until they are golden brown and caramelized. Add in your rice and garlic, stir to combine, and then add in your ½ cup of stock. Stir often, you want to make sure that the rice doesn’t burn, stir until the liquid has been absorbed, then add in another ½ cup, stir, and when that liquid has also been absorbed, add in another ½ cup of stock. Continue to do this for another 18-20 minutes, until the rice is tender.

When your rice is ready, stir in the Parmesan, salt, and pepper. Taste and adjust seasonings as needed. Serve hot.

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