Camu camu
Camu camu are small purple-red berries that grow on bushes along the flooded riverbanks of the Peruvian Amazon, and in Iquitos and Pucallpa they are sold as frozen pulp and blended into a sharp, pink refresco at juice bars and lunch places. The flavour is intensely sour, more than lime, with a faint cherry note, and the berries are famous for containing far more vitamin C than oranges. It is the drink people order with a heavy plate of tacacho or rice. Never boil camu camu or make the juice hours ahead: heat and air quickly fade its colour and much of the vitamin C, so blend it cold and drink it soon. Frozen pulp or freeze-dried powder from health-food and Latin shops are the forms you'll find abroad. Chef's tip: start with half the pulp and add more to taste; it's strong enough that a little goes a long way.







