Marmalade is an iconic Scottish food, traditionally made every year in January and February when Seville oranges are available. Shirley Spear, whose multi-award-winning Three Chimneys restaurant on the Isle of Skye is a magnet for foodies, has written the ultimate guide to marmalade - not just to making it, but to using it as an ingredient all the year round in a delicious variety of dishes. The recipes here are both sweet and savoury, from Chocolate Marmalade Tart, Marmalade Ice Cream and Apple and Frangipane Tart with Marmalade Glaze, to Marmalade Sauce for Roast Duck, Glaze for Roast...