Wash the zucchini, clean the edges and cut into thin slices, about ¼ inch/half a centimeter.
Arrange them on kitchen paper towels and add salt. Let them stand 2 for 20 minutes.
Preheat the oven to 400°F / 200°C.
By now, you’ll be able to see small water droplets on the surface of the zucchini. Dry them slightly with paper towel.
Put flour in a bowl. Add zucchini one by one and toss them around until they’re fully covered. Place them on a baking sheet lined with parchment paper. Sprinkle or brush them with vegetable oil.
Bake for 35-40 minutes.
NOTES
The thinner the zucchini slices are, the crispier they will become.
I use corn oil for sprinkling but you can also use sunflower oil, canola oil, or any other vegetable oil you want. You could also use olive oil but they probably won't turn out as crispy.