Horseradish Sauce II

Directions

1. Melt butter, remove from heat and stir in flour.
2. Add the milk gradually, stirring constantly, until mixture boils and thickens.
3. Add salt and pepper and cook for 3 minutes more, add the grated horseradish and dry mustard and blend well.
4. Keep hot in double boiler.
5. Serve on slices of boiled beef or corned beef.