Chicken Tarragon
["4 chicken breasts, skin and bone removed", "2 Tbsp. oil", "2 Tbsp. butter", "1/4 c. chopped green onion", "1/4 c. brandy", "1 c. white wine", "2 tsp. dried tarragon", "1 1/2 Tbsp. chopped parsley", "1 tsp. salt", "1/8 tsp. white pepper", "1 c. half and half", "1 egg yolk", "1/4 lb. fresh mushrooms, sliced", "2 Tbsp. butter", "parsley sprigs (for garnish)"]
["Heat oil and butter in a large frying pan.", "Saute chicken until lightly browned and remove to a warming platter.", "Add green onion to drippings and saute about 5 minutes.", "Return chicken to the pan and add brandy, wine, tarragon and pepper.", "Cover and simmer 20 minutes."]
["chicken breasts", "oil", "butter", "green onion", "brandy", "white wine", "tarragon", "parsley", "salt", "white pepper", "egg yolk", "fresh mushrooms", "butter", "parsley"]