Remove large pork pieces from the braising liquid and onto a baking sheet. Boil the braising liquid uncovered until the sauce thickens and reduces to about 1 cup of liquid, about 25-30 minutes.
Shred the pork carnitas entirely and remove any remaining fat. Pour the reduced braising liquid over the shredded carnitas. Season with salt and peppe,r if needed.
Broil for 3-5 minutes, until the meat is browned and edges are crispy. Remove from the oven, flip the pieces of meat to the other side, and then broil again for 3-5 minutes.