Sift the flour and stir in the baking powder, salt, and cinnamon.
Bring the water to a boil, then take off of the heat and whisk in the dry ingredients.
Stir for two-three minutes until the dough is consistent and lump free (you could also beat the mixture with an electric mixer for one minute on a medium speed)
Let the dough rest and cool for about 5 minutes
Fill a churrera (churro maker) or a pastry sleeve with a star tip with the churro dough
Heat the oil to a medium heat and when it's hot enough pipe the dough in a circular motion.
Separate the spirals so that they don't stick and flip the spiral if necessary
When they are golden on the outside take out and let rest on paper towels
Repeat the process until all the churros have been made
Cut the spirals into sticks of churros and serve with hot chocolate or sprinkle with sugar