Boil the potatoes

• Bring a large pot of water to a boil and add the salt and baking powder.
• Add the potatoes and boil until just tender.

Drain and rough up the surface

• Drain the potatoes in a colander.
• Shake the colander to create a crust on the potatoes.

Season the potatoes

• Coat the potatoes with olive oil.
• Season with salt, pepper, garlic powder and rosemary.

Bake

• Spread the potatoes on a baking tray and bake at 230 °C (450 °F).
• Toss the potatoes and bake for another 20 minutes until golden and crispy.

Serve

• Enjoy the crispiest baked potatoes.