Authentic is an American-style handmade burger shop in a back alley of Akasaka, Tokyo, about a 10-minute walk from Tameike-sanno Station. It serves a double cheeseburger and a cheeseburger along with a teriyaki burger and a broccoli cheese burger, and the patties are known for their juiciness and strong meat flavor. On a Saturday at 3 p.m., entry was possible without waiting, and the french fries came as a side. On some days the patty is drier than before.