Brunsmörrostade potatisar med fläskströbröd

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1. 1
   Heat the oven to 200C/180C fan/gas 6. Cook the potatoes in a pan of boiling salted water for 4-5 mins until just tender. The potatoes can be boiled up to 24 hrs ahead and chilled. Put the oil and butter in a shallow roasting tin and heat in the oven until the butter is sizzling. Carefully add the potatoes to the hot tin and roast for 30 mins.
2. 2
   Shake the tin, then continue to roast for 10-15 mins until golden and crisp all over. Toss through the parsley and spoon into a serving bowl, then scatter over the pork scratchings, if using, and serve.