Recipes Ingredients Meat & Poultry Pork Recipes Roast Loin of Pork with Mrs. Kostyra 4.0 (7) 4 Reviews By Martha Stewart Test Kitchen Martha Stewart Test Kitchen The recipes developed by our test kitchen team have undergone a rigorous process of development and testing, ensuring that every element is optimal, from ingredient amounts to method and cooking time. This process includes triple-testing recipes to ensure they meet our high standards. The many stellar cooks and food editors who have been part of our team include Sarah Carey, Lucinda Scala Quinn, Jennifer Aaronson, Shira Bocar, Anna Kovel, Greg Lofts, Riley Wofford, Lauren Tyrell, and Lindsay Leopold. Editorial Guidelines Updated on September 28, 2016 Print Rate It Share Share Tweet Pin Email Servings: 10 This savory pork dish has always been one of Mrs. Kostyra's favorites to prepare and -- since her childhood in Nutley, New Jersey -- one of Martha's favorites to eat. Surprisingly easy to make, the recipe features a rich reduction sauce flavored with marjoram, onions, and prunes. Ingredients 1 boneless pork loin (4 to 5 pounds), tied 4 cloves garlic, sliced 1 ½ teaspoons coarse salt ¼ teaspoon freshly ground pepper ½ teaspoon sugar ½ teaspoon dried marjoram 2 tablespoons all-purpose flour 3 tablespoons vegetable oil 2 medium onions 1 ½ cups water, plus more for prunes 2 cups prunes Directions Make incisions in the pork every 2 to 3 inches, and insert garlic slices. In a small bowl, combine salt, pepper, sugar, and marjoram, and coat the pork evenly with the mixture. Cover with plastic wrap, and let stand at room temperature for 1 hour. Preheat oven to 375 degrees. Sprinkle flour over the pork to lightly coat. Shake to remove any excess flour. In a large skillet, heat oil over medium-high heat. Add pork, and brown on all sides. Transfer pork to a large roasting pan. Grate onions over the pork. Add 1 1/2 cups water to roasting pan, and roast, covered, for 1 hour, basting occasionally. In a medium bowl, soak prunes in enough cold water to cover, for 15 minutes. Drain, and add to roasting pan. If necessary, add a little water to roasting pan to prevent pork loin from sticking. Cover, reduce heat to 325 degrees, and roast until temperature of pork loin reaches 140 degrees on an instant-read thermometer, 15 to 30 minutes. Remove pork loin from roasting pan, and let rest for 10 minutes. Place roasting pan on stove, heat over medium-high heat, and cook pan juices until reduced and thickened enough to coat the back of a wooden spoon. Slice pork, arrange on a serving platter, and serve with sauce. Rate it Print