Flapjacks. I’m always looking for a different approach to them. An unadulterated flapjack, though delicious in all its buttery glory looks to me like a blank canvas, ready for painting with all manner of flavours. This recipe for Rhubarb Compote Flapjacks represents something new in my repertoire; a flapjack with a layer of preserve running through the centre. Irresistible.