French Onion Stuffed Pork Loin

Try this French Onion Stuffed Pork Loin recipe, or contribute your own.

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French Onion Stuffed Pork Loin Save
French Onion Stuffed Pork Loin

Try this French Onion Stuffed Pork Loin recipe, or contribute your own.

  • Preparing Time: 15 minutes
  • Total Time: 30 minutes
  • Served Person: 0

Step-by-step

  • Melt 3 tablespoons butter in a skillet.
  • Add 2 yellow onions thinly sliced and cook until caramelized.
  • Pour in 1/2 cup beef broth and simmer until absorbed.
  • Preheat oven and prepare 1 center-cut pork loin about 3 pounds.
  • Drizzle the pork loin with 2 tablespoon extra virgin olive oil.
  • Season the pork loin with 1 teaspoon salt, 1/4 teaspoon pepper, and 1 teaspoon italian seasoning.
  • Slice the pork loin to create a pocket for stuffing.
  • Stuff the pork loin with the caramelized onions and a portion of 2 cups shredded gruyere cheese divided.
  • Secure the stuffed pork loin and roast until fully cooked.
  • Top with remaining gruyere cheese and melt before serving.
Most cooks rush the caramelization process by turning up the heat. High heat burns natural sugars instead of breaking down complex carbohydrates into sweet, savory compounds. Sliced yellow onions require low heat over roughly forty minutes to achieve deep color and rich umami without bitterness.

The Chemistry of Browning


The Maillard reaction drives flavor development in both the pork exterior and the slow-cooked onions. Amino acids and reducing sugars combine under moderate heat to create hundreds of new flavor compounds. Searing the center-cut loin in extra virgin olive oil establishes a golden crust before internal proteins denature completely.

Melting the Cheese Properly


Gruyere provides moisture and distinct nuttiness inside the meat pocket. High moisture content allows the cheese to melt smoothly at 150 degrees Fahrenheit without separating into pools of oil. Distribute the shredded cheese evenly to create a cohesive binder for the onion filling.

Storage and Reheating


Leftovers store safely in the refrigerator for up to four days in an airtight container. Reheat slices gently in a 300 degree oven with a splash of beef broth to prevent the lean pork from drying out.