1Preheat your oven to 220°C (425°F) and line a large baking sheet with parchment paper.
Peel the russet potatoes and cut them into evenly sized fries, about 1 cm thick.
Place the cut potatoes in a large bowl of cold water and let them soak for at least 30 minutes to remove excess starch. This helps make the fries crispier.
Drain the potatoes and pat them completely dry with a clean kitchen towel.
In a large bowl, toss the dried potatoes with the cornstarch until evenly coated.
Drizzle the olive oil over the potatoes and toss again to coat all the fries evenly.
Spread the fries out in a single layer on the prepared baking sheet, making sure they are not touching each other.
Sprinkle the salt evenly over the fries.
Bake in the preheated oven for 25 minutes, then flip the fries and bake for another 15-20 minutes, or until golden brown and crispy.
Remove from the oven and let cool for a few minutes before serving. Enjoy your crispy baked French fries!