Maple Sponge Candy

Directions

1. 1
   Butter a 9x9 inch pan and set aside.
2. 2
   In a heavy 2 quart saucepan, combine the syrup, sugar and vinegar. Bring to a boil over medium heat, stirring constantly until sugar dissolves. Continue cooking without stirring until a candy thermometer reads 300 degrees F (150 degrees C).
3. 3
   Remove from heat and quickly stir in the baking soda.
4. 4
   Immediately pour candy into prepared pan, Do not spread. Cool and break into pieces.