Preheat oven to 400°F. Line a baking sheet with parchment for easier cleanup.
Wash and slice potatoes into thicker fries or wedges. For medium potatoes, cut in half, then cut each half in half lengthwise. For larger potatoes, cut once more to keep pieces even.Uniform size helps everything cook evenly—no one wants a burnt fry next to an undercooked one! Add the fries to a large bowl and toss with garlic powder, onion powder, parsley, salt, pepper, and olive oil until evenly coated.
Spread the fries on your baking sheet. No need to space them perfectly—just keep them mostly in a single layer so they roast instead of steam.
Bake for 30 minutes, then flip the fries. Return to the oven for another 25–30 minutes, or until the edges are golden brown.
Serve hot with homemade ketchup or your favorite dip!