In a bowl, mix the bread flour, baking powder, and salt. Make a well in the center and pour in the water (preheated in the microwave) and the oil. Stir, then add the egg.

Mix well and let the dough rest for 20 minutes.

After resting, place the dough in a churro maker. For air fryer: place the churros on parchment paper and bake for 10 minutes at 400°F (200°C).

For frying: heat sunflower oil in a skillet and fry the churros.