Peel and chop the potatoes into even bite-sized pieces, I normally like to cut mine into quarters
In a large pot bring some water to the boil and add in 1 tsp of salt then parboil the potatoes for around 10 minutes or until they start to soften on the outside but are still not cooked all the way through
Once the potatoes are done drain them, add some salt and shake inside of the colander till the potatoes are fluffy on the outside this will make them crispy
Heat up enough oil to cover the bottom of the baking tray and place in an oven at (180 degrees celsius / gas mark 4 / 355 Fahrenheit) for a few minutes or until the hot is nice and hot
Carefully put the potatoes into the baking tray spread evenly and continue baking at the same temperature, turning over and shaking them every 10 - 15 minutes or so
Once they are golden brown, crisp and cooked all the way through your potatoes are ready, the baking time is usually 45 - 55 minutes