Homemade Mushroom Sauce

In small saucepan, combine 1 can (3 oz) sliced mushrooms and their broth, 1/2 c. water, dash Tobasco, 1/4 tsp. Kitchen Bouquet, 2 tsp. cornstarch,, 1 tsp. sherry. Mix well. Cook and stir until sauce thickens and starts to boil. Salt to taste.