Step 2: Peel the potatoes and cut them into half-centimeter strips, soak them in cold water and wash away the starch.

Step 3: Put water in a pot, when the water boils, put in the potato strips, and cook until six or seven mature.

Step 4: Dry the boiled potato strips, let them cool, and put them in the refrigerator to freeze.

Step 5: Remove the potato strips after they are frozen until hard.

Step 6: Heat oil in a wok until 70% to 80%, add frozen potato sticks.

Step 7: Fry until golden brown, drain.

Step 8: You can add tomato sauce or add moderate salt.