Sponge Candy - cooking recipe

Ingredients

1 c. sugar
1 c. dark corn syrup
1 Tbsp. vinegar
1 tsp. baking soda

Preparation

Butter a 9 x 11 or 10 inch square pan at least 2 inches deep. Combine sugar, corn syrup and vinegar.
Cook without stirring to 300 degrees on a candy thermometer or until small amount becomes brittle when dropped in cold water.
Remove candy from heat and quickly stir in baking soda.
Mix well, then turn into a lightly buttered pan.
The candy will spread by itself.
Do not spread with spoon.
When cool, break into pieces.
Coat with chocolate if desired.