Rosemary-Mustard Pork Tenderloin with Maple-Onion Jam

I am a major sauce fan. The sweet onion jam really made this dish special. The meat was also loaded with flavor from the rosemary-mustard-garlic seasoning. I served it with maple syrup roasted acorn squash, and roasted gold and sweet potatoes, carrots, and kohlrabi. It was a weeknight feast.

This recipe was adapted from Antoni in the Kitchen by Antoni Porowski. I increased the amount of garlic and substituted apple cider for bourbon in the onion jam. Delicious.

Yield: Serves 4

For the Maple-Onion Jam:

  • 2 T unsalted butter
  • 1 T olive oil
  • 1 1/2 to 2 pounds red onions, cut into 1/4-inch pieces (about 4 1/2 cups)(I used 2 large onions)
  • Kosher salt
  • 1/3 cup pure maple syrup
  • 1/4 cup fresh apple cider or bourbon
  • 1/2 tsp freshly ground black pepper

For the Rosemary-Mustard Pork Tenderloin:

  • 4 to 8 large garlic cloves, thinly sliced
  • Kosher salt
  • 2 T grainy or creamy Dijon mustard
  • 1 T plus 1 tsp finely chopped fresh rosemary
  • freshly ground black pepper
  • 1 T plus 2 tsp olive oil, divided
  • 2 (1 to 1 1/4-pound) pork tenderloins
  • 1 T unsalted butter

To Make the Maple-Onion Jam:

  1. In a large heavy skillet, heat the butter and oil over medium heat until the butter is melted. (I used a stainless steel sauté pan.)
  2. Add the onions and 1/4 tsp salt, reduce the heat to medium-low, and cook, stirring frequently, until the onions are very tender and sweet, 30 to 35 minutes.
  3. Add the maple syrup and cider (or bourbon), increase the heat to medium, and cook, stirring occasionally, until the liquid has evaporated and the onions are jammy, about 7 to 10 minutes. Watch carefully and lower the heat if necessary.
  4. Remove from the heat and stir in pepper and 1/4 tsp salt. Adjust seasoning to taste.
  5. Serve warm or at room temperature.

Note: The jam can be made ahead, cooled, covered, and refrigerated for up to 2 weeks.

To Make the Rosemary-Mustard Pork Tenderloin:

  1. While the jam cooks, mound the sliced garlic with 1 teaspoon salt on a cutting board. Using a chef’s knife, mash and chop into a paste.
  2. Transfer garlic to a small bowl. Stir in the mustard, rosemary, 1/2 tsp pepper, and 2 tsp olive oil.
  3. With a paring knife or kitchen shears, make 12 x-shaped incisions, about 1/8-inch deep, all over each tenderloin.
  4. Rub the tenderloin all over with the garlic mixture, stuffing bits into the incisions.
  5. With a rack in the center, heat the oven to 425 degrees, preferably on convection roast. (This temperature is ideal for roasting vegetables at the same time.)
  6. In a large oven proof skillet, heat the butter and remaining tablespoon olive oil over medium-high heat until the butter is melted and foamy. (I used a 12-inch cast iron skillet.)
  7. Add the tenderloins and cook until browned on the bottom, about 5 to 7 minutes.
  8. Turn browned side up and transfer the skillet to the preheated oven. Roast until an instant-read thermometer inserted into the thickest part of the pork reads 135 degrees, about 15 to 20 minutes. (I used the oven probe.)
  9. Transfer to a cutting board and let rest for 10 minutes.
  10. Cut the pork into thick slices and serve with the onion jam.

Marcella Hazan’s Butter, Tomato, & Onion Sauce

I made this sauce when I was still swimming in gorgeous fresh tomatoes. Because the sauce is so simple, it really showcases them. That being said, the quality of the tomatoes used is very important.

There are many debates about this famous sauce online. Much of the discussion is about whether or not butter (and its richness) should be incorporated into a tomato sauce. My vote is “YES!” 🙂 After tasting it, I think most would agree with me. Other discussions revolve around dissatisfaction with the results compared to the “hype.” Comments about the sauce being soupy and underwhelming may stem from using lower quality tomatoes or an abbreviated cooking time. We loved it.

My intention was to freeze the sauce to enjoy it during the winter, but it was too delicious to wait. The debate about this sauce in my house was about what type of pasta to serve it with! 😉 My husband won with his choice of pappardelle. Great.

This recipe was adapted from Hazan Family Favorites: Beloved Italian Recipes by Guiliano Hazan, via Epicurious.com. I increased the cooking time and reserved the onions after removing them from the tomato mixture (I pureed and seasoned them to serve as a spread on toasted baguette slices). Using fresh instead of canned tomatoes may have altered the total cooking time. I more than doubled the cooking time in order to achieve my desired consistency. I also pureed the finished sauce. Addictive!

Yield: Makes enough sauce for 1 pound of pasta

  • 2 pounds ripe tomatoes (or 3 cups canned whole peeled tomatoes with their juice, preferably San Marzano)
  • 1 medium sweet yellow onion
  • 5 tablespoons butter
  • 1 1/4 teaspoons coarse salt
  • 1/3 cup freshly grated Parmigiano-Reggiano, to finish
  1. If using fresh tomatoes, peel them: Score the base of each tomato and place it in a pot of boiling water for 30 seconds. Remove the tomato with a wire strainer and peel off the skin.
  2. Coarsely chop the fresh or canned tomatoes.
  3. Trim both ends of the onion; peel it and cut it in half lengthwise.
  4. Put the tomatoes, onion, butter, and salt in a 4- to 5-quart saucepan over medium heat. When the tomatoes begin to bubble, lower the heat to a slow but steady simmer. Cook, stirring every 10 to 15 minutes, until the tomatoes are no longer watery and the sauce has reduced, about 45 minutes to 2 hours, depending on the size and shape of the pot. (I used an enameled cast iron pot.) The sauce is done when the butter has separated from the tomatoes and there is no remaining liquid.
  5. Puree the finished sauce, if desired.
  6. Prepare one pound of pasta in boiling, salted water according to package directions.
  7. When you toss pasta with the sauce, add about 1/3 cup freshly grated Parmigiano-Reggiano.

Note: If the sauce is doubled, the cooking time will increase.

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