6 boneless, skinless chicken breast halves 2 tsp. tarragon 3 ½ cups ( 1-750 ml bottle) white wine 1-8 ounce pkg. fresh sliced mushrooms 2 tsp. vegetable oil ½ cup yellow mustard 1 tbs. corn starch ¾ cup heavy cream salt & pepper to taste Place chicken in a bowl and coat with mustard. Heat [...]