Ingredients

Method

Heat oven to 200C/180C fan/gas 6. Cook the potatoes and parsnips in a large pan of boiling salted water for 3 mins. Drain, then separate potatoes from parsnips.

Meanwhile, pour the oil into a roasting tin and heat for 5 mins. Coat the potatoes in the hot oil, then roast for 25 mins. Remove from oven, add the parsnips and garlic, then return to the oven and cook for a further 30 mins, giving the tin a shake halfway through.