American Cuisine
Peel the potatoes and cut them into **even 4 cm pieces**. Different sizes mean some burn while others stay raw.
Boil them in salted water with **a teaspoon of bicarbonate** for **only 10 minutes**. The bicarbonate raises the alkalinity, which breaks down the potato surface and greatly increases the cr...
Drain them and leave them in the colander for **3 minutes** so the steam escapes. A wet surface never crisps in the oven.
Return them to the dry pan, put the lid on and **shake hard five times**. The surface will be rough and slightly mashed — that is what becomes the crisp crust.