Preheat the oven to 475 °F. Line a large baking sheet with an oven safe cooling rack.
Scrub the potatoes and peel (optional). Slice into ¼-1/2 inch thick sticks and place in a mixing bowl.
Toss potato sticks with olive oil and sea salt until evenly coated. Place on the rack on the prepared baking sheet, evenly spaced.
Place in the oven and bake for 10 minutes. (If your oven has a convection option, using it will result in even crispier fries).
After 10 minutes, rotate the baking sheet 180 degrees and then return to the oven for an additional 5-10 minutes until the edges are lightly browned and the fries are crispy.
Serve immediately.
Notes
This recipe can easily be doubled but you'll need a second baking sheet and rack. Place one sheet on the top rack of the oven and the other on the second. Swap their positions at the halfway mark.If you don't have an oven safe baking rack, see the post above for tips on how you can make these right on the baking sheet.LeftoversFries are best consumed fresh. However, they can be stored in an airtight container in the refrigerator for up to 3 days. Reheat in the microwave or in the oven at 350 for 5-10 minutes. They won't be as crispy but they'll still be tasty.