2. Rinse the cut French fries with cold water for a while.

3. Soak in salt water for about 10 minute, then take it out and drain it;

4. Take a pot, pour a proper amount of water, boil it, add French fries, and stew for about 3 minutes until the French fries are cooked.

5. Drain the cooked French fries and put them in a bowl to cool;

6. After cooling, package the French fries and put them in the freezer of the refrigerator, and freeze them overnight until the potatoes are frozen hard;

Pour a little more oil into the pot, heat it to 50% heat, add frozen French fries, fry for 3 minutes on low heat, fry for 1 minute after taking out, and take out; Sprinkle salt while it is hot and dip it in ketchup.