Bechamel Sauce

4 Tablespoons unsalted butter
4 Tablespoons flour
2 cups cold milk
1/2 teaspoon salt
1/8 teaspoon white pepper
dash of nutmeg
1 teaspoon sugar

MELT the butter in a skillet. When it has stopped foaming, stir in the flour and cook, while stirring, for 3 minutes. Make sure it does not brown.
WHISK in the cold milk, nutmeg, salt, pepper and sugar. Continuing to stir, cook for until thickened.
STIR in a little cream if you plan to use as a plain sauce.