Cut potatoes into 1cm-wide sticks and soak in water to remove starch, then drain.

Place the potatoes in a microwave-safe container, cover loosely with plastic wrap, and microwave at 600W for 2 minutes. Pat dry if needed.

Put the potatoes and flour into a plastic bag and shake to coat evenly.

Heat olive oil in a frying pan over low heat, add the coated potatoes, and cook while turning until lightly browned.