Here's the ultimate recipe to make your own churros at home, just like they were at the churrería stands. Of course, the difference here is price. Here you can make a whole batch for what is cost for a few. Once you make the churros, you can make the authentic chocolate dip to dunk them in.
Prepare to fry the churros by heating oil in a pan (1 to 1&1/2 inches) to 360 degrees F.
To make churro dough, heat water, margarine and salt to rolling boil in 3-quart saucepan; stir in flour. Stir vigorously over low heat until mixture forms a ball, about 1 minute; remove from heat. Beat eggs all at once; continue beating until smooth and then add to saucepan while stirring mixture.
Spoon mixture into cake decorators' tube with large star tip (like the kind use to decorate cakes). Squeeze 4-inch strips of dough into hot oil. Fry 3 or 4 strips at a time until golden brown, turning once, about 2 minutes on each side. Drain on paper towels. (Mix Sugar and the optional cinnamon); roll churros in sugar or dump the sugar on the pile of churros, like the pros. That churro taste will take you right back to your favorite summer days walking the paseos of Spain.
Note: REAL churros in Spain are made without cinnamon mixed with the sugar, but the cinnamon adds an extra nice flavor.