Ingredients

  • Two 12- to 16-ounce duck breast halves, patted dry
  • Kosher salt, to taste
  • Freshly milled black pepper, to taste
  • 2 tablespoons extra-virgin olive oil
  • 1/4 cup finely chopped shallots
  • 1/3 cup port wine
  • 1/4 cup chicken broth
  • 1/4 cup packed, chopped dried plums
  • 1 tablespoon good balsamic vinegar
  • 1 tablespoon unsalted butter
  • 1 tablespoon chopped fresh thyme

Method

  • Prepare a medium-high-heat fire, with the flames occasionally licking the grill grate.
  • Let it burn steadily for 30 minutes.
  • Place a large cast-iron skillet upon the grill grate and let it heat until very hot.
  • Score the fatty skin of the duck in a 3/4-inch diamond pattern, taking care not to cut through to the flesh.
  • Season the duck all over with salt and pepper.
  • Transfer the duck, skin side down, to the hot skillet and cook until it is honey-brown and crisp, 5 to 8 minutes.
  • Pour off all but 2 tablespoons of fat into a heatproof container (reserve it for Duck Eggs with Rosemary Salted Potatoes).
  • Turn the duck and adjust one's grill grate or tamp one's flames so that the fire provides medium heat.
  • Cook to the desired doneness, 4 to 7 minutes (depending upon the size of the breast) for medium rare.
  • Transfer the duck to a work surface, tent it with foil, and let rest for 10 minutes.
  • Again pour off and reserve all but 2 tablespoons of the fat drippings.
  • Return the skillet to the heat.
  • Stir in the shallots and cook 30 seconds.
  • Add the port, broth, plums, and vinegar.
  • Simmer until the mixture thickens slightly, 2 to 3 minutes.
  • Whisk in the butter and fresh thyme; season to taste with salt and pepper.