Lamb salad with Georgian plum sauce

There are so many terrific preparations using unripe fruit, which adds a different and exciting shade of sourness – stews studded with sour grapes, crunchy melon pickles, green tomato salads. These are really hard to come by unless you grow your own, as all the fruit in the supermarkets tends to be either super-sweet or bland. That said, we do manage to find sour plums at Tesco, at least at the one in Brixton, where the supermarket management saw fit to plant a few plum trees in the vast pa