Roast duck with Marsala gravy. FLAVOURED WITH BAY, CLEMENTINE & FIVE-SPICE. DAIRY-FREE. SERVES: 6 COOKS IN: 2H 20M DIFFICULTY: NOT TOO TRICKY Ingredients. Method. 1 x 1.6kg whole duck. 1. Preheat the oven to 180°C/350°F/gas 4.