This is a great buttery shortbread recipe that gets its wonderful flavour from fresh orange zest and a hint of cinnamon.
If the dough is still a little too sticky, add small amounts of flour until you reach the desired consistency. It should roll out pretty smoothly when the consistency is right.
Also, if you haven't left your butter out of the fridge and it is too hard, you can cut it in to small pieces and microwave it until it softens. Be careful though, you want it to be soft, not melted!