Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1 1/4  cups          sugar
     1/2  cup           cocoa
     3/4  cup           light corn syrup
   2      teaspoons     cider vinegar
     1/8  teaspoon      salt
   2      tablespoons   butter
     1/4  cup           evaporated milk
   2      quarts        popped corn

Preparation:

1. Thoroughly combine sugar, cocoa, corn syrup, vinegar and salt in a heavy 4-quart saucepan.

2. Add butter; cook, stirring constantly, over low heat until sugar dissolves and mixture comes to a boil.

3. Gradually add evaporated milk; cook and stir over low heat until mixture registers 265 F. on candy thermometer (hard-ball stage) or until small amount of syrup dropped into very cold water forms a hard ball.

4. Stir into popped corn.

5. Butter hands; quickly roll large spoonfuls of mixture into 4-inch balls.