Chicken Breasts With Creamy Mustard Sauce
["2 whole chicken breasts, halved, skinned and boned", "1/4 tsp. salt", "2 Tbsp. butter", "2 Tbsp. chopped green onions", "1/4 lb. mushrooms, thickly sliced (1 c.)", "1/3 c. dry white wine", "1 Tbsp. Pommery mustard", "2 tsp. Dijon-style mustard", "1/4 tsp. pepper", "1 Tbsp. vegetable oil", "1/2 c. heavy cream", "2 Tbsp. chopped parsley"]
["Pat chicken breasts dry with paper towels.", "Sprinkle with salt and pepper.", "Saute chicken in butter and oil in a large skillet, shaking pan occasionally to prevent sticking, until lightly golden, about 6 minutes.", "Turn.", "Lower heat.", "Saute until chicken is tender, about 4 minutes longer.", "Chicken should feel springy, with no pink remaining.", "Cover skillet; cook 2 minutes longer to steam. Remove to warm platter.", "Cover and keep warm.", "Pour fat into a cup. Measure and return 2 tablespoons to skillet.", "Saute green onions 30 seconds.", "Add mushrooms.", "Cook and stir until mushrooms are lightly golden, about 1 minute."]
["chicken breasts", "salt", "butter", "green onions", "mushrooms", "white wine", "mustard", "mustard", "pepper", "vegetable oil", "heavy cream", "parsley"]