From what I understand, it's best if you either grill them(after marinating) or treat them like you would BBQ ribs...
Here's the definition of the cut "Pork spare rib brisket is the meat that is left over after spare ribs are cut down into various styles. Although it is relatively inexpensive because it is virtually scrap meat, pork spare rib brisket can be tough and gristly because of the fat and membranes that coat it."......