As far as recipes go, it's just the standard Hersheys recipe.
3 C sugar
2/3 C cocoa
1 1/2 C milk
1/2/ tsp salt
1/4 cup butter
1 tsp vanilla
Bring sugar, cocoa, salt and milk to boil over medium heat, stirring constantly. Once it gets to a boil, stop stirring until soft ball stage is reached (240*). Remove from heat, add butter and vanilla, let set for a couple minutes, stir until sheen is gone and starting to thicken, pour into buttered pan.