In a pot, boil the water with butter and salt.

Once it boils, add the flour and mix vigorously until it forms a uniform dough.

Remove from heat and continue mixing vigorously to ensure that no lumps remain and also to cool down the dough.

Put the dough in the bowl of an electric mixer with the kneading blade and add the eggs while kneading.

Knead until a uniform dough forms and refrigerate for half an hour.

Put the dough in a pastry bag with a star spout, form the churros on a tray covered with parchment paper.

In a cauldron over medium-high heat, heat plenty of vegetable oil to fry the churros. To make sure that the oil has the right temperature, put a tablespoon of dough to fry, if the dough floats and bubbles form around it, then you can start frying the churros.

Put the dough in a pastry bag with a star spout, form the churros on a tray covered with parchment paper.

Transfer the churros to the cauldron, one by one and 4 by 4, until they begin to brown. Flip so they are evenly fried.

Remove the churros from the cauldron and put them to drain on absorbent paper.

Sprinkle the churros with sugar.

Serve immediately with hot chocolate.