In large frypan, place butter and oil and heat to medium temperature until butter melts.
4 tbs butter, 1 tbs cooking oil
Add chicken and cook, turning, about 10 minutes or until brown on all sides.
1 large chicken
Remove chicken and place in baking pan or casserole.
In same frypan, saute mushrooms about 5 minutes or until tender. Stir in flour. Add soup, wine and water; simmer, stirring, about 10 minutes or until sauce thickens.
1 cup dry white wine, 8 oz mushrooms, 1 tbs flour, 11 oz cream of chicken soup, 1 cup water
Stir in the cream, salt, tarragon and pepper; pour over chicken.