Welsh Rabbit Recipe

Prepare white sauce, in top part of a double boiler, from first six ingredients, mixing dry ingredients with the mustard.
Set top of the boiler over hot (not boiling) water.
Add cheese, cook and stir until melted.
Serve on saltines or hot toasted bread.
Optionally add a half cup chopped olives.
Vary this dish by adding one or two slightly beaten eggs immediately after the cheese has melted and continue cooking until the mixture has thickened.