This isn't the traditional Christmas candy. No, this sponge candy, also called honeycomb, is a unique treat that can be served on its own or dipped in chocolate!
Prepare the pan that will be needed at the end to pour the candy into. Grease a 9 x 13-inch or jelly roll pan generously (a jelly roll pan will produce a flatter candy, and a 9 x 13-inch pan will produce a thicker candy).
Bring sugar, corn syrup, molasses, and vinegar to a boil in a heavy-bottomed large saucepan (at least a 4 quart). Continue to boil, stirring constantly until a candy thermometer registers hard crack or 300°F.
1 cup granulated sugar, 1 cup dark corn syrup, ½ teaspoon molasses, 1 tablespoon distilled white vinegar
Once at a hard crack, remove from the heat and stir in 1 tablespoon of baking soda until completely incorporated. The mixture will foam up and bubble. This is why a large saucepan is needed.
1 tablespoon baking soda
Pour into prepared pan and let cool completely, 4-6 hours. Do not spread or touch the candy once poured into the pan. You want the air and light texture to stay intact.
"Crack" or break into large pieces and drizzle with melted chocolate if desired. Or dip pieces completely in chocolate and let dry.