01 - Immerse the cut potatoes in cold water for at least 30 minutes to remove excess starch, then drain and dry thoroughly.
02 - Heat vegetable oil to 350°F in a deep fryer or large heavy pot. Fry potatoes in batches for 3 to 4 minutes until tender but not golden. Remove and drain on paper towels.
03 - Increase oil temperature to 375°F. Fry potatoes again in batches for 2 to 3 minutes until golden and crispy. Drain well.
04 - In a large skillet, melt butter over low heat. Add minced garlic and sauté for 1 minute until fragrant, avoiding browning.
05 - Add hot fries to the skillet, tossing with garlic, parsley, salt, pepper, and Parmesan cheese (if using) until evenly coated.
06 - Serve immediately while fries are hot and crispy.