Aniseed is one of those flavours you either love or hate. It’s similar to liquorice (which I can’t stand), but a little aniseed brings with it an aromatic fragrance that I quite enjoy and doesn’t feel as overpowering. It’s balanced in these cookies by a buttery crumb and the freshness of the lemon. For the most vibrant flavour, start with whole aniseed seeds and crush them in a mortar.