Renga (smoked herring with lemon and tahini)
On Sham el-Nessim, the spring festival Egyptians of every faith celebrate on the Monday after Coptic Easter, families head to parks and the Nile banks with coloured eggs, spring onions, lettuce and fish, and renga is on almost every picnic cloth. Golden smoked herring is skinned, boned and flaked, then dressed with plenty of lemon, raw onion, chilli and a garlicky tahini sauce, so the salty, smoky fish is cut by sharp citrus and creamy sesame. It is scooped up with baladi bread and crunchy greens. Shop-bought renga is cold-smoked and eaten without cooking, so it is not for pregnant women, young children or anyone with a weakened immune system unless you heat it first (see the last step). Buy it sealed from a reputable shop, within its date. Chef's tip: soak the fillets in cold water for 10 minutes to tame the salt before dressing them.



