Puffs are a type of light, filled pastries. They are made from a dough that is similar to choux pastry, which is a combination of butter, water, flour, and eggs. The dough is piped into small balls and then baked until they are golden and crisp. Puffs can be filled with sweet or savory fillings, such as cream, custard, cheese, or vegetables. They are often served as appetizers, desserts, or snacks.