Brotherton's Black Iron Barbecue announced Nov. 28 that the restaurant's expansion is officially open at 15608 Spring Hill Lane, Ste. 105, Pflugerville. Brotherton's Black Iron Barbecue absorbed its neighboring suite, increasing the restaurant's space by about 30 percent. 512-547-4766. www.blackironeats.com John Brotherton, owner of Brotherton's Black Iron Barbecue, is opening a new restaurant in downtown Round Rock under the name Liberty Barbecue.