Hot Fudge Sauce

This is Kathy's hot fudge sauce-- one of my favorite treats!

Hot Fudge Sauce

1 cube butter

6 ounces semisweet chocolate chips

1 1/2 cups powdered sugar

1 1/2 cups evaporated milk

1. Melt the butter and chocolate chips.

2. Add the milk and powdered sugar. 

3. Boil 5 minutes, stirring constantly.

4. Serve warm over ice cream.