While Queen Elizabeth's actual birthday was back in April, her official celebration isn't until June. (The oh-so-British reasoning? April is far too cold and rainy for a proper parade.) Fortunately ...

To prepare the mini custard tarts, start with the shortcrust pastry: place the flour, sugar (1), a pinch of salt, and room temperature butter cut into pieces (2) in a bowl. Also, add the baking powder ...