These are fabulously light scones made with yoghurt, which helps to cut down the fat and calories - though you won't know it when you're enjoying these! You can try using reduced fat yoghurt instead of regular, too. These aren't overly lemony - the lemon zest provides just a hint of bright citrus flavour.
You can add other fruits - fresh or dried - instead of the blueberries. Some great ideas are fresh raspberries, sultanas or currants.