Heat the water, butter, sugar, and salt in a pot until they boil. Reduce the heat and add flour. Stir quickly until a dough forms and leaves the sides of the pan.

Let the dough cool slightly. Add eggs one by one and mix well until smooth. Stir in vanilla extract to enhance the flavor.

Heat the oil in a deep pan over medium-high heat. Make sure the oil is hot enough before frying, around 350°F.

Spoon dough into a star-nozzled piping bag. Pipe strips of dough directly into the hot oil and fry until golden brown on all sides.

Mix cinnamon and sugar in a bowl. Roll each churro in this mixture while still warm for the perfect coating.

Suppose you want them like Jack in the Box, pipe sweet cream or caramel inside using a small nozzle. Serve warm and enjoy!