Mother'S Fudge
["2/3 c. cocoa", "3 c. sugar", "1/8 tsp. salt", "1 1/2 c. milk", "1/4 c. margarine (use stick)", "1 tsp. vanilla"]
["Thoroughly combine dry ingredients in a heavy, 4-quart saucepan.", "Stir in milk and bring to a bubbly boil on medium heat, stirring constantly.", "Boil, without stirring, to a soft ball stage.", "Remove from heat.", "Add margarine and vanilla.", "Do not stir.", "Cool at room temperature (110\u00b0)."]
["cocoa", "sugar", "salt", "milk", "margarine", "vanilla"]