Deviled Mushrooms - cooking recipe

Ingredients

1 ounce unsalted butter
6 ounces mushrooms, sliced
1 tablespoon plain flour
5 fluid ounces milk
2 teaspoons reduced-sodium Worcestershire sauce
1 teaspoon French mustard
1 tablespoon tomato puree
4 slices hot buttered toast
fresh parsley (to garnish)

Preparation

Melt the butter in a saucepan, and saute the mushrooms for 2 minutes.
Add the flour, cook for a minute and slowly add the remaining ingredients, stirring continuously until the mixture boils.
Simmer for 2 minutes.
Pile on top of the hot toast, and serve immediately garnished with parsley.