Ingredients

  • 1 tablespoon cornstarch
  • 2 teaspoons sugar
  • 1 teaspoon dry mustard
  • 1/2 teaspoon salt
  • 1 cup water
  • 1 tablespoon butter
  • 1/4 cup cider vinegar
  • 1 teaspoon grated prepared horseradish
  • 2 egg yolks, beaten

Method

  • 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.