Peter's Salsa

Ingredients

• 3.5 to 5 lb pork shoulder(bone-in). You can sub other pork roasts(loin, club roast)
• 1 large onion, peeled and quartered
• 2 cups chicken stock (or water)
• 1 1/2 lb. tomatillos, peeled, washed and left whole
• 1 tsp. cumin seed
• 1 tsp. Hungarian sweet paprika
• 1 tbl. dried oregano
• 1 tbl. chipotle chile, finely chopped (optional)