Brotherton's Black Iron Barbecue is expanding at 15608 Spring Hill Lane, Ste. 105, Pflugerville, to absorb its neighboring suite. The expansion is expected to finish in October and will increase the restaurant's space by about 30 percent. 512-547-4766. www.blackironeats.com John Brotherton, owner of Brotherton's Black Iron Barbecue, recently announced that he is opening a new restaurant in downtown Round Rock under the name Liberty Barbecue.