Lemons are an essential element in many cooking processes. A natural agent of change, their acidity brings balance and harmony to food. Lemons enhance flavours and, when preserved, give them an incomparable complexity. Fresh lemon rind/zest or its juice is no substitute for the smooth mellow character of a preserved lemon. Often used in conjunction with aromatic spices and herbs, preserved lemons provide a foil to the richness of meat and the oiliness of fish and olives, while at the same time transforming an ‘acceptable’ dish into a taste sensation.