Angel Food Candy "Sugar and dark corn syrup are cooked with vinegar and tempered with baking soda to make a crunchy candy that gets covered in a chocolate coating." Original recipe yield: 1.5 pounds. INGREDIENTS: 1 cup white sugar 1 cup dark corn syrup 1 tablespoon vinegar 1 tablespoon baking soda 1 pound chocolate confectioners' coating DIRECTIONS: Butter a 9x13 inch baking dish. In a medium saucepan over medium heat, combine sugar, corn syrup and vinegar. Cook, stirring, until sugar dissolves. Heat, without stirring, to 300 to 310 degrees F (149 to 154 degrees C), or until a small amount of syrup dropped into cold water forms hard, brittle threads. Remove from heat and stir in baking soda. Pour into prepared pan; do not spread. Mixture will not fill pan. Allow to cool completely. In the microwave or over a double boiler,