I do my roast potatoes in the same way I do my chips, but I cook mine on a chip net I bought in the £1 shop. Its just a coated wire flexible basket type thing and because the air circulates right around them, they go really crispy and you don't need to turn them during cooking either. I also add mixed herbs/seasoning/onion salt/etc., when I shake the potatoes up in the pan before they go in the oven, I love them, so much nicer than the 'old way' of cooking