A taco shop in Mexico City became the first to win a Michelin star on Wednesday (15 May). El Califa de León is the only taco shop among the 18 restaurants that earned coveted stars after the esteemed guide included Mexico for the first time. Although Michelin representatives visited head chef Arturo Rivera Martínez to hand over one of the company’s heavy, full-sleeved, pristine white chef’s jackets, he didn’t put it on. From his tiny, three-metre square kitchen, newly minted Michelin-starred chef Rivera Martínez has been doing the exact same thing for the past 20 years: searing meat. At Mexico…