Black burger by El Toro steakhouse

Black hamburgers have become a trend in Japan, where both McDonald’s and Burger King released burgers featuring black buns. Though the Japanese versions are colored with bamboo charcoal, also known as activated charcoal,In the European Union [medicinal charcoal] is used as food colorant (known as additive E153).But at the El Toro steakhouse we make this recipes with natural dried cuttlefish ink.