Hot Fudge Sauce - cooking recipe

Ingredients

1 (12 ounce) can evaporated milk
1 (12 ounce) package semi-sweet chocolate chips
1/2 cup sugar
1 tablespoon butter or 1 tablespoon margarine
1 teaspoon vanilla

Preparation

Place milk, chocolate chips and sugar in a medium saucepan.
Heat to boiling over medium heat, stirring constantly.
Remove from heat, and stir in butter and vanilla (sauce will thicken while it is cooling).
Serve warm over ice cream.