Spotted in Sacramento, CA and sampled by one of your fellow BrandEaters (who was kind enough to include pictures and his thoughts), the test item is essentially a bacon breakfast sandwich with the addition of creamy chipotle sauce (chipotle sauce is something they've offered before). Specifically, it includes bacon, chipotle sauce, a slice each of American and Swiss-style cheese, and eggs between two slices of toasted sourdough.
Here's what he had to say about Jack's Breakfast Bacon Chipotle Melt:
"Saw this at my local JitB in Sacramento, CA so I thought I'd take it for a spin. Anyone familiar with the flavor profile of Jack's menu will find no surprises here. The (not very) sourdough provides a nice soft, crunchiness (wait...what?), and is immediately followed up, and mellowed by, the dual layers of cheese which impart a nice creaminess. There was just enough bacon present to furnish the requisite layer of breakfast-sandwich-meatiness, while Jack's chipotle sauce added a nice savory, smok-...wait for it...-iness.
Photos by Anonymous.