For banana chips, I needed vegetable oil, banana and powdered sugar.
And I spent about 7 minutes cooking them:
I cut the banana into thin circles.
Laid out in a frying pan with boiling vegetable oil (that is, deep-fried).
When the circles were fried to a golden hue, I took them out and laid them on a plate covered with a cloth (so that the excess oil drained from the product).
Then she put the chips on a plate and sprinkled with powder.