I have a very simple recipe for some simple biscuits. The recipe is based around a single egg.
Ingredients
One egg
Same weight of cold cubed butter and caster sugar
Twice the weight of plain flour
Rub the flour and butter into breadcrumbs.
Stir in the sugar and then add the egg to bind the mixture into a dough.
The mixture should come into a dough quite easily.
I then form the dough into a large sausage shaped roll, about 3-4 cm in diameter. I then wrapped the dough in cling film and placed in the fridge for an hour or so. This is to firm up the dough and make it easier to manage when slicing into biscuit shapes.
Removing the dough from the fridge, I sliced it into rounds which are then placed onto a baking tray. Now you can placed them onto a greased tray, but I usually use baking parchment. One tip I picked up from Jamie Oliver was after cutting the parchment was to screw it up into a ball and then flatten the screwed up parchment. What this does is make it much easier to line the baking tray, otherwise the parchment as a tendency to roll back into a roll.
These are then baked in a moderate oven for about 10-12 minutes until film. I prefer my biscuits just cooked, not browned, so they have a softer crumbly texture. If you prefer a crisper biscuit then bake for a little longer.
Once baked, remove the tray of biscuits from the oven and place on a cooling rack.
Once cooled, you can then ice the biscuits or cover them in chocolate.
and then you can have one every time you make coffee at home! 
