Peel the potatoes and slice them into ½-inch thick sticks. Place them in a large bowl and cover with cold water. Soak for at least 30 minutes. This step removes excessive starch, ensuring maximum crispiness.
Drain the potatoes and rinse them under cold water until the water runs clear.
In a large pot, combine the potatoes, 1 teaspoon of salt, and enough cold water to cover them. Bring to a boil over high heat. Once boiling, immediately turn off the heat. The potatoes should be tender on the outside but still firm in the center. Do not overcook, or they will turn to mush.
Carefully drain the potatoes. Gently spread them out on a baking sheet lined with a clean kitchen towel or paper towels. Pat them completely dry. Then place the entire baking sheet in the fridge for 30 minutes. This step further dries the surface for crispy fries.
Heat oil in a large pot(135℃, 275℉), fry the potatoes for 3-5 minutes until they form a thin layer of pale skin. Fry in batches so the pan is not overcrowded.
Increase the oil temperature to 375°F (190°C). Working in batches again, fry the potatoes a second time for 2-4 minutes until they are golden brown and crispy, moving them around occasionally to ensure evenly cooked.
Transfer the fries to a wire rack to drain any excess oil, and sprinkle generously with salt while they are still hot.
Serve immediately with a scoop of rich, homemade vanilla bean ice cream for the ultimate sweet, salty, hot, and cold experience. Dip boldly and enjoy!