Serving: Crispy fries taste best fresh, but you can keep them warm in a 200°F (93°C) oven for up to 30 minutes.
Storage: Store leftover fries in an airtight container in the refrigerator for up to 2 days. Reheat in an air fryer or 375°F (190°C) oven for 5 to 7 minutes to regain crispness.
Variations:
Garlic Parmesan Fries: Toss freshly fried fries with minced garlic, grated Parmesan cheese, and parsley.
Spicy Fries: Mix a seasoning blend of paprika, cayenne pepper, and garlic powder, and sprinkle over hot fries.
Sweet Potato Fries: Substitute sweet potatoes for russets and follow the same process, although frying time may vary slightly.
FAQ:
1. Why use vinegar for fries?
Vinegar strengthens the structure of the potato, helping it retain its shape and become beautifully crispy during frying.

2. Can I use another type of vinegar?
Yes, white vinegar is ideal, but apple cider vinegar or malt vinegar can also work. Just be aware of the flavor they can impart.

3. Can I bake these fries instead of frying them?
Yes! After boiling, lightly coat the potatoes with oil and bake at 425°F (220°C) for 25 to 30 minutes, turning halfway through.

4. Which potatoes work best for fries?
Russet potatoes are ideal because of their high starch content and low moisture content, which results in crispy exteriors and soft interiors.

With this vinegar trick, crispy fries are no longer a mystery. Experiment with variations and enjoy the ultimate homemade fries experience!