In Neilly Robinson’s sunlit Asbury Park kitchen, the sourdough starter is ever hungry. Fridays through Sundays, Robinson, the founder of Heirloom Kitchen in Old Bridge, bakes bread for the cooking school’s new weekend chef ’s table and supper club. Much of Robinson’s fresh bread goes with her to work. But she keeps some aside for sourdough French toast breakfasts with her husband and business partner Jason Robinson. The breakfasts are a nod to tradition: Growing up a bit north of here, Robinson remembers making challah French toast with her grandmother.