Irish Mustard Sauce

A great accompaniment to corned beef and cabbage, or baked ham.

Combine cornstarch , sugar , mustard and salt in quart pan.

Add water.

Stir over low heat until mixture thickens and boils.

Remove from heat.

Add butter , vinegar , and horseradish.

Beat a little of hot mixture into egg yolks.

Then add yolk mixture into pan.

Cook slowly , stirring until sauce thickens slightly.

Serve.

cornstarch, sugar, dry mustard, salt, water, butter, cider vinegar, prepared horseradish, egg yolks