Chocolate Caramel Candy(Lucia Pettit) - cooking recipe

Ingredients

1 c. sugar
1 heaping Tbsp. cocoa
1/3 c. water
1/2 c. Karo syrup
butter the size of a walnut
1 Tbsp. vinegar
1 tsp. vanilla

Preparation

Mix the first 3 ingredients and bring to a boil.
Add the syrup and butter.
Continue to boil and add the vinegar as it starts to thicken.
While simmering, test for a soft ball in a cup of cold water and continue testing until it forms a thread (or tail).
When done, add the vanilla and immediately pour out onto a buttered 8-inch pie plate.