Herb and Onion Pork Tenderloin

Elevate your dinner table with this Herb and Onion Pork Tenderloin—a dish that’s as flavorful as it is elegant. This recipe combines succulent pork tenderloin with caramelized onions, fresh rosemary, and thyme, bringing bold, herbaceous flavors to the forefront. A quick sear locks in the juices, while a light sauce of chicken broth, optional white wine, and zesty lemon juice adds depth and brightness to every bite. The entire dish comes together in just 45 minutes, making it an impressive yet approachable option for weeknight meals or special occasions. Roasted to tender perfection and topped with a savory onion and herb sauce, this pork tenderloin pairs beautifully with creamy mashed potatoes, rustic vegetables, or a crisp green salad for a well-rounded meal. Whether you're hosting guests or treating yourself, this recipe is sure to be a standout!

Nutriscore Rating: 64/100

Prep Time:15 mins

Cook Time:30 mins

Total Time:45 mins

Servings: 4

Ingredients

• 1 pound pork tenderloin
• 1 medium yellow onion
• 3 large garlic cloves
• 1 tablespoon fresh rosemary
• 1 tablespoon fresh thyme
• 2 tablespoons olive oil
• 1 tablespoon butter
• 1 teaspoon salt
• 0.5 teaspoon black pepper
• 0.25 cup chicken broth
• 0.25 cup white wine (optional)
• 1 teaspoon lemon juice

Directions

Step 1

Preheat your oven to 400°F (200°C).

Step 2

Pat the pork tenderloin dry with paper towels and season it evenly with salt and pepper on all sides.

Step 3

Finely chop the fresh rosemary and thyme, and set them aside.

Step 4

Peel and thinly slice the yellow onion into rings. Mince the garlic cloves.

Step 5

Heat 1 tablespoon of olive oil in an oven-proof skillet (such as a cast-iron skillet) over medium-high heat.

Step 6

Sear the pork tenderloin on all sides until it’s golden brown, about 2-3 minutes per side. Remove the tenderloin from the skillet and set it aside.

Step 7

Reduce the heat to medium and add the remaining tablespoon of olive oil and the butter to the skillet. Once the butter has melted, add the sliced onion and cook, stirring occasionally, until the onions are softened and caramelized, about 8-10 minutes.

Step 8

Add the minced garlic, fresh rosemary, fresh thyme, and lemon juice to the skillet with the onions. Stir and cook for 1 minute to release the aromatics.

Step 9

Deglaze the skillet by pouring in the chicken broth and white wine (if using). Scrape the bottom of the skillet with a wooden spoon to release any browned bits.

Step 10

Return the seared pork tenderloin to the skillet, nestling it among the onions and herbs. Spoon some of the sauce over the tenderloin.

Step 11

Transfer the skillet to the preheated oven and roast for 15-20 minutes, or until the internal temperature of the pork reaches 145°F (63°C) for medium doneness.

Step 12

Remove the skillet from the oven and loosely tent the pork tenderloin with foil. Let it rest for 5-10 minutes before slicing.

Step 13

Slice the pork tenderloin into medallions and serve with the caramelized onion and herb sauce spooned over the top. Enjoy your Herb and Onion Pork Tenderloin!

Nutrition Facts

Serving size	(757.9g)

Amount per serving	% Daily Value*
Calories	1093.7

Total Fat 55.0g	0%
Saturated Fat 16.0g	0%
Polyunsaturated Fat 5.2g
Cholesterol 341.3mg	0%
Sodium 4121.4mg	0%
Total Carbohydrate 20.3g	0%
Dietary Fiber 3.1g	0%
Total Sugars 5.6g
Protein 115.2g	0%

Vitamin D 38.5IU	0%
Calcium 105.2mg	0%
Iron 6.5mg	0%
Potassium 2453.5mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 47.7%

Protein: 44.4%

Carbs: 7.8%