Sponge Candy

Directions

1. 1
   Mix sugar, corn syrup and vinegar in saucepan.
2. 2
   Cover tightly; bring to a boil.
3. 3
   Uncover; place a candy thermometer in the pan. Without stirring, cook over medium heat to 300°.
4. 4
   Gradually lower heat as mixture thickens to prevent scorching.
5. 5
   Remove from heat; quickly stir in the baking soda and vanilla.
6. 6
   Turn into a buttered 9 x 13-inch pan.
7. 7
   Do not spread; candy will spread itself.
8. 8
   Cool; break into pieces.