Ingredients

  • 3 tablespoons olive oil
  • 4 skinless boneless chicken breast halves
  • 1 large red onion, cut into 1/2-inch-thick slices, separated into rings
  • 1 teaspoon chopped fresh oregano or 1/2 teaspoon dried
  • 6 medium-size heads Belgian endive, trimmed, halved lengthwise
  • 1 medium-size head radicchio, cut into 8 wedges
  • 1 tablespoon dark brown sugar
  • 1/2 cup balsamic vinegar
  • Chopped fresh parsley

Method

  • Heat 1 tablespoon oil in heavy large skillet over medium-high heat.
  • Season chicken with salt and pepper.
  • Add to skillet; saute until cooked through, about 6 minutes per side.
  • Transfer chicken to platter (do not clean skillet).
  • Tent chicken with foil.
  • Heat 2 tablespoons oil in same skillet over medium-high heat.
  • Add onion and oregano; saute until onion softens, about 10 minutes.
  • Using tongs, transfer onion to plate.
  • Reduce heat to medium.
  • Add endive to skillet and saute until beginning to brown, turning occasionally, about 5 minutes.
  • Add radicchio.
  • Cover skillet and cook until radicchio begins to brown and endive softens, about 5 minutes.
  • Return onion to skillet.
  • Sprinkle vegetables with sugar.
  • Stir until sugar melts, about 1 minute.
  • Transfer vegetables to plate.
  • Add vinegar to skillet; boil until slightly thickened, scraping up any browned bits, about 2 minutes.
  • Add chicken to skillet; turn to coat with glaze.
  • Arrange chicken on platter.
  • Arrange vegetables around chicken.
  • Drizzle remaining glaze from skillet over vegetables.
  • Top with parsley.