01 - Preheat oven to 425°F. Line a baking sheet with parchment paper.
02 - Wash and scrub potatoes. Cut into 1/4-inch thick fries, leaving skin on for texture.
03 - Soak cut potatoes in cold water for 20 minutes to remove excess starch. Drain thoroughly and pat completely dry with a clean towel.
04 - In a large bowl, toss fries with olive oil, smoked paprika, garlic powder, onion powder, oregano, thyme, cayenne, black pepper, and salt until evenly coated.
05 - Spread fries in a single layer on the prepared baking sheet without overcrowding.
06 - Bake for 20 minutes, flip the fries, then continue baking for 15 minutes until golden brown and crispy.
07 - While fries bake, whisk together mayonnaise, hot sauce, lemon juice, smoked paprika, garlic powder, and cayenne in a small bowl until smooth.
08 - Serve hot Cajun fries with spicy mayo on the side for dipping.