Use a thermometer for precise oil temperature control. Soaking and drying potatoes thoroughly are essential for crispy fries. Double frying creates the ideal texture. Use a wire rack to drain fries to keep them crisp. Fry in small batches to maintain oil temperature. Customize seasoning with garlic parmesan, Cajun, truffle oil, herbs, or try sweet potato fries. Leftovers can be refrigerated and reheated in a hot oven to regain crispiness.