Chef Darren Purchese Course Dessert Servings 20 portions   Ingredients Components Sweet pastry tart case White chocolate & vanilla mascarpone cream White chocolate shards Pistachios Sweet Pastry Tart Case 280g plain flour                                                        90g icing sugar                              pinch salt                  ½ orange, fine zest                     135g unsalted butter, cold diced    1 egg, medium   1 egg yolk          egg wash (2 yolks, splash cream – mixed...