The pork brisket is precisely analogous to the beef brisket: it comes from the breast or lower chest, between the shank and the shoulder, or, in other words, the upper half of the "arm shoulder" primal. If you can get your butcher to leave the skin on, you will have acres of yummy crispy pork skin to snack on when this is done. Adapted from a recipe by Chichi Wang at Serious Eats. http://bit.ly/cWtNOl