Butterscotch Sauce

1 egg, lightly beaten

⅔ cup brown sugar

⅓ cup light corn syrup

¼ cup water

¼ cup butter

Combine sugar, corn syrup, water and butter in a saucepan. Cook over medium heat, stirring occasionally, until butter melts and sugar dissolves. Remove from heat.

Lightly beat egg. Pour hot sugar mixture into the egg in a steady stream, whisking constantly. Return mixture to saucepan. Cook over low heat, stirring constantly, until mixture has thickened; do not boil.