Roasted Pork Tenderloin With Butternut Squash Mash and Tarragon

The scent of autumn always brings me back to my grandmother’s kitchen. The air, thick with the aroma of roasted squash and savory herbs, was a promise of warmth and comfort. While she was famous for her apple pie, it was her simple, elegant dinners that truly captured my heart. I can still picture her carefully plating slices of tender pork alongside a vibrant orange squash mash, the subtle anise note of tarragon weaving through it all. This dish, a modern take on those cherished memories, is my homage to her enduring culinary spirit.

Recipe Overview

• Prep Time: 15 minutes
• Cook Time: 30 minutes
• Total Time: 45 minutes
• Servings: 4
• Dietary Type: Gluten-Free

Ingredients

• 1 medium butternut squash, cut in half lengthwise, seeds removed
• 1 lb lean pork tenderloin, trimmed of all visible fat
• Salt
• Fresh ground black pepper
• Nonstick butter-flavored cooking spray
• ½ cup unsweetened applesauce
• 4 teaspoons Dijon mustard
• ½ cup apple cider or low-sodium chicken broth
• 1 tablespoon agave nectar
• 2 teaspoons agave nectar
• 2 teaspoons chopped fresh tarragon
• 1 pinch ground nutmeg
• ½ cup toasted walnuts, broken into small pieces

Equipment Needed

• Microwave-safe plate
• Large cast-iron skillet
• Baking sheet
• Aluminum foil
• Medium bowl
• Fork
• Sharp knife
• Wooden spoon

Instructions

1. Begin by preheating your oven to 400°F (200°C). This ensures the oven is hot and ready for roasting both the squash and the pork.

2. Prepare the butternut squash. Place the two halves, cut side down, on a microwave-safe plate. Microwave on high until the squash is tender enough to easily pierce with a fork – this typically takes around 12 to 15 minutes. Microwaving the squash significantly reduces cooking time compared to roasting it whole in the oven.

3. While the squash is cooking, prepare the pork tenderloin. Heat a large cast-iron skillet over high heat. Season the pork generously with salt and pepper. When the pan is very hot, coat it with nonstick butter-flavored cooking spray. Add the pork to the pan and sear on all sides, creating a beautiful brown crust. This should take about 3 minutes per side. Searing the meat locks in the juices and adds a depth of flavor. Transfer the seared pork to a baking sheet and continue cooking in the oven until done, approximately 10 to 15 minutes, or until the internal temperature reaches 155°F (68°C). Use a meat thermometer to ensure accuracy.

4. Remove the baking sheet from the oven and tent the pork with foil to keep it warm. Allow the meat to rest for at least 10 minutes before slicing. This resting period allows the juices to redistribute throughout the meat, resulting in a more tender and flavorful final product.

5. While the pork is resting, prepare the tarragon sauce. Return the same pan you used for searing (without washing it) to the stovetop over medium-low heat. Add the applesauce, scraping up any flavorful bits from the bottom of the pan with a wooden spoon – these browned bits, known as fond, are packed with flavor. Add the Dijon mustard, apple cider (or chicken broth), 2 teaspoons of agave nectar, and chopped fresh tarragon. Stir continuously until the sauce thickens slightly, about 5-7 minutes. Season with salt and pepper to taste. The Dijon mustard adds a tangy sharpness, while the apple cider contributes a subtle sweetness and helps to deglaze the pan.

6. Once the butternut squash is cool enough to handle, scoop the flesh of the squash into a medium bowl. Mash the squash with a fork until it reaches your desired consistency. Add the ground nutmeg and the remaining agave nectar. Stir until combined. Season with salt and pepper to taste. The nutmeg adds a warm, comforting note, complementing the sweetness of the squash.

7. With a sharp knife, thinly slice the rested pork tenderloin against the grain. Serve the pork with the reduced tarragon sauce and the butternut squash mash. Sprinkle the toasted walnuts on top of the pork for added texture and flavor. The walnuts provide a delightful crunch and a nutty aroma that ties all the elements together.

Expert Tips & Tricks

• Pre-chop the squash: To save time, you can often find pre-cut butternut squash in the produce section.
• Don’t overcook the pork: Pork tenderloin is lean and can become dry if overcooked. Use a meat thermometer to ensure it reaches an internal temperature of 155°F (68°C). The temperature will rise slightly as it rests.
• Toast the walnuts: Toasting the walnuts before adding them to the dish enhances their flavor and aroma. You can toast them in a dry skillet over medium heat or in the oven at 350°F (175°C) for about 5-7 minutes, until fragrant. Watch carefully so they don’t burn.
• Make ahead: The butternut squash mash can be made a day in advance and reheated gently before serving. The tarragon sauce can also be prepared ahead of time.
• Herb infusion: For a more intense tarragon flavor, add the tarragon to the apple cider while the sauce is simmering, allowing it to infuse. Remove the tarragon before serving.
• Spice it up: Add a pinch of red pepper flakes to the tarragon sauce for a little heat.

Serving & Storage Suggestions

Serve the roasted pork tenderloin, butternut squash mash, and tarragon sauce immediately for the best flavor and texture. The warmth of the dish enhances the aroma of the tarragon and allows the flavors to meld together beautifully.

Leftovers can be stored in airtight containers in the refrigerator for up to 3 days. Reheat gently in a skillet or microwave until warmed through. The pork may become slightly drier upon reheating, so consider adding a splash of chicken broth or water to the pan.

Freezing is not recommended as it can affect the texture of both the pork and the squash mash.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	378.7 kcal	N/A
Calories from Fat	127 g	34%
Total Fat	14.1 g	21%
Saturated Fat	2.3 g	11%
Cholesterol	73.7 mg	24%
Sodium	132.7 mg	5%
Total Carbohydrate	39.4 g	13%
Dietary Fiber	7.2 g	28%
Sugars	9.5 g	N/A
Protein	29 g	57%

Variations & Substitutions

• Sweet Potato Mash: Substitute sweet potato for butternut squash for a slightly different flavor profile.
• Maple Syrup: Use maple syrup instead of agave nectar for a richer, more autumnal sweetness.
• Different Nuts: Pecans or almonds can be used in place of walnuts.
• Herb Variations: Try using rosemary or thyme instead of tarragon for a different herbal note. Rosemary pairs particularly well with pork.
• Wine Reduction: For a richer sauce, deglaze the pan with dry white wine instead of apple cider or chicken broth. Allow the wine to reduce by half before adding the other ingredients.
• Dairy-Free Mash: Ensure the Dijon mustard used is dairy-free.

FAQs (Frequently Asked Questions)

Q: How can I tell when the pork tenderloin is cooked perfectly?

A: Use a meat thermometer inserted into the thickest part of the pork. It should register 155°F (68°C) for medium doneness. Remember that the temperature will continue to rise slightly as it rests.

Q: Can I use dried tarragon instead of fresh?

A: While fresh tarragon is preferred for its brighter flavor, you can use dried tarragon. Use about 1 teaspoon of dried tarragon for every 2 teaspoons of fresh.

Q: What if I don’t have a cast-iron skillet?

A: A regular skillet will work, but cast iron retains heat exceptionally well, resulting in a better sear on the pork. Ensure your skillet is hot before adding the pork.

Q: How do I prevent the butternut squash from becoming watery when mashed?

A: Microwaving the squash cut-side down helps to steam it gently and prevent excess moisture. Also, avoid over-mashing, as this can release more moisture.

Q: Can I make this recipe vegetarian?

A: Yes! Substitute thick slices of halloumi cheese, seared in the same way as the pork, for a vegetarian option.

Final Thoughts

This Roasted Pork Tenderloin With Butternut Squash Mash and Tarragon is more than just a recipe; it’s an invitation to create a warm, comforting experience in your own kitchen. Whether you’re a seasoned chef or a beginner cook, this dish is sure to impress with its elegant flavors and simple preparation. I encourage you to gather your ingredients, embrace the process, and share this delightful meal with those you cherish. Don’t hesitate to experiment with variations and make it your own! I’d love to hear your feedback and see your culinary creations. Bon appétit!