Pisco sour
Lima drinks its pisco sour as the aperitif before a long ceviche lunch, and celebrates it every year on the first Saturday of February; the recipe took shape in the city's bars in the 1920s. It is for adults only and stronger than its pillowy look suggests. Underneath a thick white foam you get sharp Peruvian lime, a clean sweetness and the floral, grapey warmth of quebranta pisco, with the bitters adding a spicy smell to every sip. The texture should be silky, almost creamy, never thin. The classic mistake is squeezing the limes too hard or too early: the oil from the pith turns the drink bitter within half an hour. Halve the limes, press each half gently by hand just before mixing and stop when the juice slows. The egg white is raw, so use pasteurised egg white for anyone pregnant, for babies, older people or anyone unwell, or swap in 30 ml aquafaba. It is ready when the foam stands about 1 cm high and is firm enough to hold the drops of bitters on its surface. Sip one slowly and drink responsibly. Chef's tip: shake once without ice first to whip the egg white, then again with ice; the foam will be twice as thick.























