Toffee apples are a popular sweet treat made by coating whole apples in a hard toffee or caramel layer. They are typically served on a stick, making them easy to hold and eat. The toffee coating is usually made from sugar, water, and vinegar, which is heated until it reaches a hard crack stage. These delicious snacks are often associated with fairs, carnivals, and autumn festivals, particularly around Halloween and Bonfire Night in the United Kingdom. Toffee apples can be found in various flavors and colors, sometimes decorated with nuts or sprinkles for added texture and taste.