Chocolate Fudge

Directions

1. 1
   Mix sugar, cocoa and milk.
2. 2
   Cook slowly and add butter when it starts to boil.
3. 3
   Cook until a soft-ball forms in cold water. Add vinegar.
4. 4
   Remove from heat.
5. 5
   Add vanilla and beat until it begins to thicken.
6. 6
   Pour into buttered Pyrex dish.
7. 7
   Let cool. Cut, then eat.