 He took over Father's Office and added his own touches.Yoon opened the bar's kitchen which had previously offered cheese plates and a list of local delivery options for patrons to bring in.The main attraction turned out to be the Office Burger, a patty of fine dry-aged beef topped with caramelized onions, Gruyère and Maytag cheeses, applewood-smoked bacon compote and arugula served on a soft roll.