Christmas Canard à l'Orange (Duck in orange sauce) Serves: 4 Ingredients 3 large sweet potatoes, washed, unpeeled, cut into 2cm slices ½ garlic bulb, unpeeled, halved widthways 1 whole duck 2 cardamom pods 4 shallots, sliced ½ vanilla pod, halved lengthways 2 tbsp honey 2 oranges, juice of 1 tsp fennel seeds 1 grapefruit, juice