Chocolate Fudge - cooking recipe

Ingredients

2/3 c. cocoa
3 c. sugar
1/8 tsp. salt
1 1/2 c. evaporated milk
1/4 lb. butter
1 tsp. vanilla

Preparation

Combine cocoa, sugar and salt.
Gradually add milk.
Cook to a soft ball stage (small amount of mixture dropped in a cup of cold water will form a soft ball).
Add butter and vanilla.
Let cool, then beat on a marble slab.