4 sweet potatoes, about 350g each
olive oil
Preheat oven to 200˚C/ Gas 6.
Pour oil into roasting tin (about 5mm deep).
Peel and cut sweet potatoes into chunky chips.
Parboil until just tender (about 4 minutes).
Drain and put into hot oil in a single layer.
Roast for about 45 minutes until golden brown.
Drain on kitchen paper and serve.
