Spicy Pork Chili Recipe

boneless pork shoulder, fat removed;

onions, finely sliced;

red chilies, seeded and finely chopped;

bell peppers, sliced;

garlic cloves, minced;

can diced tomatoes;

chili powder;

smoked paprika;

ground cumin;

ground cayenne pepper;

Small bunch fresh oregano leaves, minced;

red wine vinegar;

extra-virgin olive oil;

Sea salt and freshly ground black pepper to taste;