White Mushroom Sauce - cooking recipe

Ingredients

3 c. milk
1 c. water
1 onion, chopped
1 lb. fresh mushrooms, sliced
1/2 tsp. tarragon
1/4 tsp. dill weed
1/4 tsp. thyme
1/4 c. sherry
3 Tbsp. cornstarch

Preparation

Saute mushrooms and onion in water until soft.
Add rest of ingredients except cornstarch, bring to a boil, stirring often. Blend cornstarch with 1/3 cup cool water.
Add to white sauce and cook until thickened.