Hard Sauce for Cake

Ingredients

1 cup sugar
2 tablespoons cornstarch
1/2 teaspoon salt
2 cups boiling water
1/2 teaspoon vanilla extract
1/4 cup butter

Directions

In a small saucepan, combine the sugar, cornstarch and salt. Gradually stir in water until smooth. Bring to a boil; cook and stir for 15 minutes until smooth, thickened and clear. Remove from the heat; stir in vanilla and butter. Serve warm over cake.