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Perfect Thin and Crispy French Fries

Perfect Thin and Crispy French Fries

More than meets the fry: Check out the science here.

About the author: After graduating from MIT, J. Kenji Lopez-Alt spent many years as a chef, recipe developer, writer, and editor in Boston. He now lives in New York with his wife, where he runs a private chef business, KA Cuisine, and co-writes the blog GoodEater.org about sustainable food enjoyment.

Perfect Thin and Crispy French Fries

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About This Recipe

Yield:four
This recipe appears in: The Burger Lab: How to Make Perfect Thin and Crisp French Fries
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Ingredients

  • 2 pounds russet potatoes (about 4 large), peeled and cut into 1/4-inch by 1/4-inch fries (keep potatoes stored in a bowl of water)
  • 2 tablespoons distilled white vinegar
  • Kosher salt
  • 2 quarts peanut oil

Procedures

  1. 1

    Place potatoes and vinegar in saucepan and add 2 quarts of water and 2 tablespoons of salt. Bring to a boil over high heat. Boil for 10 minutes. Potatoes should be fully tender, but not falling apart. Drain and spread on paper towel-lined rimmed baking sheet. Allow to dry for five minutes.

  2. 2

    Meanwhile, heat oil in 5-quart Dutch oven or large wok over high heat to 400°F. Add 1/3 of fries to oil (oil temperature should drop to around 360°F). Cook for 50 seconds, agitating occasionally with wire mesh spider, then remove to second paper-towel lined rimmed baking sheet. Repeat with remaining potatoes (working in two more batches), allowing oil to return to 400°F after each addition. Allow potatoes to cool to room temperature, about 30 minutes. Continue with step 3, or for best results, freeze potatoes at least over night, or up to 2 months.

  3. 3

    Return oil to 400°F over high heat. Fry half of potatoes until crisp and light golden brown, about 3 1/2 minutes, adjusting heat to maintain at around 360°F. Drain in a bowl lined with paper towels and season immediately with kosher salt. Cooked fries can be kept hot and crisp on a wire rack set on a sheet tray in a 200°F oven while second batch is cooked. Serve immediately.

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