With its exotic ingredients and colorful mix of influences — Inca, Spanish and Japanese to name but three — Peruvian cuisine has become a global phenomenon. Gastón Acurio opened the first Astrid y Gastón in 1994, and in the intervening years it has become a restaurant franchise throughout South America and Europe. And Virgilio Martínez Véliz, the owner and chef of Central, now has two restaurants in London, one of which was awarded a Michelin star in 2014, plus a third outpost, in Dubai.