Noel's Roast Potatoes Votes: 0 Rating: 0 You: Rate this recipe! Categories Potatoes Christmas Mains 10Mins Prep Time 40Mins Cook Time BeginnerSkill Level Save this recipe People Ingredients 1 Kg Floury Potatoes Maris Piper Rapeseed Oil or Duck Fat Sprigs of Rosemary Share this recipe Cooking Instructions Preheat the oven to 220 °C/ 425 °F/ Gas 7. Peel the potatoes and cut into large chunks. Parboil in boiling salted water for 5 minutes. Drain and toss in the pan to roughen the edges. Put a generous tablespoon or so of rapeseed oil or duck fat and some sprigs of rosemary in a roasting tin and put in oven until smoking.