Honeycomb toffee, also known as sponge candy or fairy food, is a light and crunchy dessert. It can be made with honey or corn syrup, sugar, water, and baking soda. The mixture is boiled and then poured into a prepared pan to set. Once cooled and hardened, the toffee can be broken into pieces. For extra flavor, it can be dipped in melted chocolate and sprinkled with salt. The toffee should be stored in an airtight container at room temperature and can last for up to a week.