Cream the butter and sugar together in a large bowl.
Add the flour and cornflour to the butter and sugar.
Rinse the cherries, dry with kitchen paper and cut into quarters. Add to the bowl with the other ingredients.
Mix with a wooden spoon and then form the dough into a single mass using your hands.
Roll out the dough on a pastry board to a thickness of about 5mm.
Form biscuit shapes either by hand or using a biscuit cutter and place on non stick baking parchment on a baking tray.
Chill for a minimum of 30 minutes before baking.
To bake
Bake at 150°C, 300°F, gas mark 2 until the edges just start to turn golden (about 20 minutes). Turn the tray around part way through the cooking time so that they bake evenly.
Leave to cool on the tray for about 5 minutes and then transfer to a wire rack to cool.
Notes
Note
The baking time indicated is based on baking in one batch.
To store
Store the shortbread biscuits in an airtight container for up to two days.
If you wish to keep them any longer it is better to freeze them.
Tips
While this shortbread could be made using margarine instead of butter, if using margarine, I recommend a type which aims to resemble the flavour of butter for maximum flavour.
Chill before baking so that the biscuits do not spread while in the oven.