Recipe from Janet Cook of Tenn.

1 1/2 cups sugar
3 Tablespoons cocoa
1/2 stick margarine (melted)
5 Tablespoons evaporated milk
3 eggs (beaten)
1 Tablespoon vanilla extract
1 Tablespoon apple cider vinegar

Mix your sugar and cocoa together and set aside.  Beat eggs, add milk, vinegar, vanilla, and margarine and mix well.  Add sugar & cocoa to wet ingredients and mix well. 

Pour into a 9 in. frozen pie crust and bake at 350 degrees for 40 minutes.