Crock Pot Coconut Pork Curry

coconut oil

boneless pork shoulder, cut into 2-inch pieces

Salt and freshly ground pepper

large onion, chopped

garlic cloves, minced

minced fresh ginger

mild curry powder

ground cumin

ground turmeric

diced tomatoes

unsweetened coconut milk

chicken stock or low-sodium broth

Steamed rice, chopped cilantro and sliced green onions, for serving