1 large white Onion
1 egg, beaten
1 t of cold water
pinch of salt and black pepper
oil for frying
Slice white onion horizontally and separate them into rings.
In a bowl, place the beaten egg.
In a plate, spread flour.
Dip each onion ring in the beaten egg, roll in the plate of flour and deep-fry.
Repeat procedure for each ring until done. Serve immediately with ketchup on the side.