Shoestring french fries are ultra-thin, crispy potato strips that deliver maximum crunch in every bite. Unlike thicker steak fries, these cook quickly at a high temperature, resulting in a delicate, golden exterior and a tender, fluffy interior. This recipe uses a double-fry method to guarantee fries that stay crisp longer, making them the perfect side for burgers, sandwiches, or just a bowl of salt.
Ingredients
- 4 large russet potatoes (about 2 lb / 900 g), peeled
- 6 cups (1.4 L) cold water, for soaking
- 2 tablespoons (30 ml) white vinegar (optional, for extra crispness)
- 4 cups (960 ml) vegetable or peanut oil, for frying
- 1 teaspoon (5 g) fine sea salt, plus more to taste
Instructions
- Cut the peeled potatoes into 1/8-inch (3 mm) matchsticks. Use a mandoline or a sharp chef’s knife for uniform strips. Place the cut potatoes into a large bowl of cold water with the vinegar (if using). Let them soak for 15–20 minutes. This removes excess starch and helps the fries crisp up.
- Drain the potatoes and rinse them thoroughly under cold running water. Spread them on a clean kitchen towel or paper towels and pat very dry. Any moisture left on the surface will cause the oil to splatter and make the fries soggy.
- In a heavy-bottomed pot or Dutch oven, heat the oil over medium-high heat until it reaches 325°F (163°C). Use a deep-fry thermometer to monitor the temperature accurately.
- Working in batches, carefully add the dried potato strips to the hot oil. Do not overcrowd the pot—fry in small handfuls so the oil temperature doesn’t drop too much. Fry for 3–4 minutes, until the fries are soft and just starting to turn pale golden. They will not be crispy yet. Remove with a slotted spoon and drain on paper towels. Repeat with all the potatoes.
- Increase the oil temperature to 375°F (190°C). Once hot, return the blanched fries to the oil in batches. Fry for 2–3 minutes, until they are deeply golden and crisp. Watch carefully—they can go from perfect to burnt quickly at this stage.
- Remove the fries with a slotted spoon and drain on fresh paper towels. Immediately sprinkle with the sea salt while they are still hot. Toss gently and serve right away.
Tips
- Soaking is non-negotiable: The cold water soak removes surface starch, which is the main culprit behind soggy fries. Even a 10-minute soak makes a noticeable difference. If you’re short on time, skip the vinegar but still soak.
- Dry thoroughly: After soaking, pat the potatoes completely dry. Excess water lowers the oil temperature and causes splattering. Use a salad spinner for the best results.
- Use a thermometer: Guessing the oil temperature leads to uneven cooking. A deep-fry thermometer is essential for the two-stage process. If the oil is too hot, the outside burns before the inside cooks; too cool, and the fries absorb oil and become greasy.
- Don’t salt before frying: Salt draws out moisture and can cause the oil to splatter. Always salt immediately after frying, while the oil is still on the surface so the salt sticks.
Serving Suggestions
Shoestring fries are incredibly versatile. Serve them alongside a classic cheeseburger, a grilled steak, or a fried fish sandwich. They also shine as a snack with a side of garlic aioli, ketchup, malt vinegar, or a spicy sriracha mayo. For a loaded version, top with melted cheddar, crumbled bacon, and chopped green onions.
Variations
- Seasoned fries: After salting, toss with garlic powder, onion powder, smoked paprika, or a pinch of cayenne for a spicy kick.
- Sweet potato shoestrings: Substitute sweet potatoes for russets. They cook slightly faster, so reduce the final fry time by about 1 minute and watch closely.
- Baked version: For a lighter option, toss the soaked and dried strips with 1 tablespoon (15 ml) of olive oil and spread in a single layer on a baking sheet. Bake at 450°F (232°C) for 20–25 minutes, flipping halfway, until crisp. They won’t be as crunchy as fried, but they are still delicious.
- Parmesan-herb: While the fries are hot, toss with grated Parmesan cheese and chopped fresh parsley or rosemary.
Storage and Reheating
These fries are best enjoyed immediately, as they lose their crispness quickly. If you have leftovers, store them in an airtight container in the refrigerator for up to 2 days. To reheat, spread them on a baking sheet and bake at 400°F (204°C) for 5–7 minutes, or until hot and crispy. Avoid microwaving, as it will make them soggy. You can also reheat in an air fryer at 375°F (190°C) for 3–4 minutes.
Frequently Asked Questions
Can I use other types of potatoes? Yes, Yukon Gold or other waxy potatoes will work, but they won’t be as crispy as russets. Russets have a higher starch content and lower moisture, which yields a fluffier interior and a crisper exterior.
Why do my fries come out soggy? The most common reasons are not soaking long enough, not drying the potatoes thoroughly, or overcrowding the pot. Make sure to soak for at least 15 minutes, pat completely dry, and fry in small batches.
Can I reuse the frying oil? Yes, you can strain the oil through a fine-mesh sieve to remove any bits, then store it in a sealed container in the refrigerator for up to 1 month. Reuse it for frying again, but be aware that the oil’s smoke point will lower slightly with each use.
Do I need to peel the potatoes? No, you can leave the skin on for extra texture and nutrients. Just scrub them well before cutting. The skin will become crispy during frying.
What if I don’t have a thermometer? You can test the oil temperature by dropping a small piece of potato into it. If it sizzles immediately and floats to the surface, the oil is ready. However, a thermometer is much more reliable for consistent results.
Can I make these ahead of time? You can blanch the fries (first fry) up to 2 hours ahead, let them cool, and keep them at room temperature. When ready to serve, do the final fry. This is a great way to prep for a party.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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