Mustard Sauce - cooking recipe

Ingredients

1 Tbsp. finely chopped onion
2 Tbsp. margarine
1 Tbsp. flour
dash of salt and pepper
1 c. milk
2 Tbsp. Dijon-style mustard

Preparation

In a small frying pan, melt margarine.
Cook onion over medium heat for 7 minutes and blend in flour, salt and pepper. Add milk slowly, stirring until thickened.
Add mustard and cook for 1 minute over low heat.
Serve with fish steaks.