Churros are not just fair food, you can make these treats at home. The dough is a pate choux or cooked dough. It is the same dough used for cream puffs and eclairs.
Chipotle peppers are smoked jalapeno chile. They are available canned in adobo sauce (made from oregano, salt, garlic, and vinegar) and dried. They have a smoky quality and can be quite spicy.