Tacos De Cecina (Pounded Pork Tacos)

from "La Comida del Barrio" by Aaron Sanchez. Needs to refridgerate overnight.

• Ready In: 1 hr
• Serves: 4

Ingredients

• 2  guajillo chilies, stemmed and seeded (See Note)
• 2 (1 lb)  pork tenderloin
• 1  tablespoon white vinegar
• 1  teaspoon dried Mexican oregano
• 2  tablespoons extra virgin olive oil, plus
•  more extra virgin olive oil, for coating the pan
• 1  teaspoon salt
• 1⁄2 teaspoon fresh ground black pepper
• 16  corn tortillas
• 1  medium  white onion, chopped
• 1⁄2 cup  chopped cilantro
• 2  limes, cut in wedges,for serving

Directions

1. Bring 1 cup of water to a boil, in a dry cast-iron skillet, toast the chilies over medium-low heat for 2 minutes, until fragrant; turn them and shake the pan so they don't scorch.
2. Put the toasted chilies in a bowl, cover with the boiling water, and let them soak until softened and reconstituted, about 15 minutes.
3. Using a sharp knife, make a deep slit down the length of the tenderloins and open them up so they lay flat.
4. With the smooth side of a mallet, pound the pork between two pieces of plastic to a 1/4-inch thickness.
5. Transfer to a platter.
6. In a blender, combine the toasted chilies, vinegar, oregano, 2 tablespoons of oil, salt, and pepper, and puree to form a paste.
7. Rub the paste on both sides of the pork.
8. Cover with plastic wrap and refrigerate overnight.
9. Preheat grill or ridged grill pan.
10. Brush grill grates with a little oil to prevent meat from sticking.
11. Scrape off excess chili paste from pork and grill for 2 minutes per side.
12. Remove to cutting board and let rest for 2 minutes.
13. Slice into 1/4-inch pieces.
14. Heat a large dry skillet over a medium flame.
15. Warm the tortillas for 30 seconds on each side, until toasty and pliable.
16. To make the tacos, stack 2 warm tortillas, lay about 4 ounces of pork down the center, and sprinkle with some onion and cilantro.
17. Drizzle 1 1/2 teaspoons of salsa on top of each taco and garnish with lime wedges.
18. Note: Guajillo chili is the dried form of the fresh mirasol chili.
19. Can be found at Latin markets.