Chef John's salted "plaster" coating traps all the moisture and flavor of the pork while it bakes and complements the apple-jalapeño salsa in tacos.
Preparation Time
15 mins
Cooking Time
3 hr 35 mins
Total Time
3 hr 50 mins
Calories
496 Calories
Recipe Instructions
Step 1
Combine apple, onion, jalapeño, cilantro, juice of 2 limes, 1 teaspoon salt, and cayenne pepper in a bowl; set salsa aside.
Step 2
Preheat the oven to 325 degrees F (165 degrees C) with oven rack in center position.
Step 3
Season all sides of pork with rosemary and black pepper.
Step 4
Stir flour, water, ½ cup salt, and egg white together in a large bowl until very smooth. Add flour if "plaster" is too runny. Add pork shoulder; coat thoroughly.
Step 5
Spread a few spoonfuls of excess "plaster" into a baking pan or dish. Add pork shoulder, fat-side up. Re-apply "plaster" with a spoon to any spots not covered and to the top.
Step 6
Roast in the center of the preheated oven until surface is dry and hard and an instant-read thermometer inserted into the center reads 185 degrees F (85 degrees C), about 3 ½ hours.
Step 7
Cool 15 to 60 minutes. Remove and discard "plaster." Break pork into big chunks; transfer to a plate. Add some accumulated pan juices from bottom of the pan. Cover with plastic wrap. Chill in the refrigerator, 8 hours to overnight.
Step 8
Slice chilled pork into strips, then cut into ½-inch cubes.
Step 9
Heat a dry, nonstick skillet over medium-high heat. Add pork; brown, 3 to 5 minutes. Serve pork on warm tortillas with salsa and lime wedges.