Instructions

  1. Heat half of oil in a medium skillet.
  2. Add chicken and cook until golden brown.
  3. Remove chicken and reserve.
  4. In the same skillet, heat remaining oil and add mushrooms and shallot.
  5. Sauté, stirring frequently, until all liquid is evaporated and shallot mixture is golden brown.
  6. Deglaze with the marsala.
  7. Be careful.
  8. In a small bowl, whisk together the broth and the flour; add to skillet.
  9. Stir constantly, bring to a boil over high heat; reduce heat to low and simmer for about 10 minutes.
  10. Add reserved chicken to mixture in skillet; simmer for 5 minutes.
  11. Remove skillet from heat and stir in sour cream, vinegar, mustard and black pepper.