A hot dog bun is a type of soft bread specifically designed to hold a hot dog, which is a cooked sausage typically served in the bun. These buns are usually made from wheat flour, water, yeast, and sugar, giving them a light and fluffy texture. They come in various sizes to accommodate different types of hot dogs. Hot dog buns can be found in many grocery stores and are often sold in packs. They are commonly used at barbecues, picnics, and sporting events, making them a popular choice for casual dining. Some variations include whole wheat or gluten-free options to cater to different dietary preferences.