Mexican Pork Roast cooked in Beer with Green Sauce

Ingredients

 * 2 onions, chopped
 * 2 carrots, peeled, sliced
 * 5 lbs loin or [[pork shoulder|shoulder pork roast
 * 2 tsp salt
 * ½ tsp oregano
 * ½ tsp ground coriander
 * ¾ cup beer

Green Sauce

 * 2 tbsp olive oil
 * 1 onion, chopped
 * 1 clove garlic, peeled, chopped
 * 10 oz tomatillos
 * ½ tsp dried oregano, crumbled
 * ½ tsp dried cilantro
 * 2 tbsp wine vinegar
 * salt and pepper

Directions

 * 1) Heat oil in small skillet.
 * 2) Saute onion and garlic until limp.
 * 3) Drain tomatillos; reserve liquid.
 * 4) Combine tomatillos, ½ cup reserved liquid, onion, garlic, oil, oregano, and cilantro in jar of electric blender; purée.
 * 5) Heat skillet over moderate heat.
 * 6) Pour in sauce; cook 10 minutes.
 * 7) Remove from heat; add wine, vinegar, salt, and pepper.
 * 8) Chill sauce; serve with pork.