In a large heavy pan, heat sugar, corn syrup, and vinegar to 290 degrees on candy thermometer. Remove from heat and add baking soda. Stir quickly until mixed.
Pour into well greased 9 by 13 pan. Let cool until hardened.
Break hardened candy into pieces. Melt chocolate chips and vegetable shortening together. Dip candy pieces in chocolate and let harden on wax paper.
Calories From Fat
% Daily Value*
Total Fat 0g
Saturated Fat 0g
Trans Fat 0g
Dietary Fibers 0g
* Percent Daily Values are based on a 2,000 calorie diet.
* Nutrition information is estimated based on the ingredients and cooking instructions as described in each recipe and is intended to be used for informational purposes only. Please note that nutrition details may vary based on methods of preparation, origin and freshness of ingredients used.