Method

Peel and quarter the potatoes
Preheat the oven 220C
Add the fat into an oven dish that can contain all the potatoes and pop into the oven
Boil the potatoes in salted water for 8 minutes
Drain the potatoes and shake vigorously in the colander to roughen the edges (this will help them to crisp up in the oven)
Carefully pour the potatoes into the hot oil, shake gently and return to the oven
Turn the oven down to 190C and bake for 50 minutes, turning a couple of times durning that time
Serve sprinkled with a little more salt