This recipe is excerpted from Cooked by Michael Pollan. Read more about the origin of this recipe in our interview with Michael Pollan.
Cooks' Note
Note: If you don't have a smoker box, you can make one by piercing holes all over a shallow and narrow foil-covered aluminum pan.
Variation: With a few small changes, the same pork shoulder can be prepared in an Asian manner. This variation is loosely adapted from a David Chang recipe; the dashi recipe is adapted from Sylvan Brackett's. Cook the shoulder as above but omit the vinegar BBQ sauce. Instead, serve it with this dashi-based ginger-and-scallion dipping sauce . Make the sauce several hours before using so that the flavors have time to meld.