Sponge Candy

Directions

1. 1
   Combine sugar, corn syrup and vinegar in heavy pan.
2. 2
   Cook over medium heat, stirring until sugar dissolves.
3. 3
   Continue cooking without stirring to 310° on a candy thermometer.
4. 4
   Remove from heat.
5. 5
   Quickly stir in soda.
6. 6
   Mix well.
7. 7
   Pour in buttered 9-inch pan.
8. 8
   Cover with melted chocolate when cooled.