Churros are a type of fried dough, not unlike doughnut batter and are made by piping into hot oil with a churrera, which has a star-shaped nozzle. They are sometimes cut into short sticks, but are often sold in large spirals.
Churros are often thought of as a dessert, but in Spain they are more of a breakfast item or a snack. They may be eaten on the go in a paper cone, perhaps made in a huge cauldron of bubbling oil at a market (scant regard for Health & Safety here!) or enjoyed in a café or specialist churreria, with coffee or thick hot chocolate, which is ideal for dipping.
Churros are normally served plain, but they may be dusted with sugar or, occasionally, made with cinnamon.