Rinse the potatoes and cut them lengthwise into slices.

Cut the long slices into more long slices and cut crosswise to make cubes.

Soak in cold water in the fridge for several hours.

When ready to cook, preheat the oven to 450 degrees.

Drain the potatoes and remove as much moisture as possible with a kitchen towel.

Place aluminum foil on a large baking sheet and spray with cooking spray.

Spread the potatoes out on the sheet and drizzle with olive oil.

Use your hands to distribute the olive oil, then sprinkle salt and pepper on top.

Cook for 20-30 minutes, flipping halfway through.