A zesty blueberry tart bursting with colour makes for an effortlessly elegant dessert A glorious dessert with a sharp citrus filling Credit : Haarala Hamilton and Valerie Berry 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. A mother of two sons, Diana can satisfy even the fussiest of eaters.    See more Published 21 May 2026 9:51am BST The pastry here is from the California chef Lindsey Shere and it’s wonderful – thin and buttery and almost biscuity. You make it in a slightly different way, creaming the butter and sugar for it and then smearing it little by little with the heel of your hand (the French term is ‘fraisage’) once the flour has been added.…