Spiced rhubarb makes a vibrant relish beside tender sliced duck breast and glossy red cabbage An elegant dish that makes the best of vibrant forced rhubarb Credit : Clare Winfield Diana Henry The Telegraph's award-winning cookery writer Diana Henry is the Telegraph’s much-loved cookery writer. She shares recipes each week, for everything from speedy family dinners to special menus that friends will remember for months. She is also a regular broadcaster on BBC Radio 4, and her journalism and recipe books, including Simple and How to Eat a Peach, are multi-award-winning.…