When Sean Brock opened Husk in Charleston in 2010, he knew we had to have a cheeseburger on the menu. That was simple. What wasn’t was figuring out what that burger should be. Brock knew he wanted to pay homage to the diner burgers he grew up eating as a child: with American cheese, special sauce and a squishy bun. And, of course, there had to be a double patty. What developed was one of the country's most popular burgers. Here’s a close look. And in case you wanted the recipe. Yeah, we got you.