Fudge Sundae Sauce - cooking recipe

Ingredients

1/2 lb. butter
8 sq. bitter chocolate
1 c. cocoa
3 c. sugar
14 oz. evaporated milk
1 Tbsp. vanilla

Preparation

Combine the first 4 ingredients and cook 1 hour over boiling water.
Beat in the evaporated milk and vanilla.
Beat until smooth.
Keep in refrigerator. Warm over hot water to serve.