Melt the butter in a saucepan over low heat; add the flour,
stirring with a wire whisk. Add the milk, stirring rapidly with
whisk.
When blended and smooth, add the garlic, pepper, nutmeg and wine.
Add the
kirsch, if desired. Serve hot with bread cubes for dipping. If
the sauce
is to be used over vegetables, omit the kirsch.