Salvadoran Chicken in Cream Sauce

Name: Salvadoran Chicken in Cream Sauce
Cuisine: American, Latin American
Ingredients: 4 bone-in skinless chicken thighs, or chicken drumsticks; 2 tbsp vegetable oil; 1 medium white onion, thinly sliced; 1 red bell pepper, thinly sliced; 1 green bell pepper, thinly sliced; 2 garlic cloves, minced; 2 medium tomatoes, diced; 1 cup chicken stock; 1 cup heavy cream; 1/2 cup sour cream; 1/2 tsp ground cumin; 1/2 tsp paprika; Salt and freshly ground black pepper, to taste; Fresh cilantro, chopped (for garnish); Lime wedges (optional, for serving)