Chocolate Fudge Sauce - cooking recipe

Ingredients

1/2 C butter OR margarine
4 squares baking chocolate (4 oz)
3 C sugar
1 - 12 oz can evaporated milk
1/2 tsp salt
1 tsp vanilla

Preparation

Melt butter and chocolate together in top of double boiler over hot water.
Gradually add sugar.
Add slowly, stirring constantly, the evaporated milk.
Add salt and vanilla.