Colombian Black Bean Stew

Name: Colombian Black Bean Stew
Cook time: 20 min
Total time: 20 min
Cuisine: American, Latin American
Ingredients: 2 13 1/2-ounce cans black beans; A dash of olive oil, rice bran oil, or water (for frying); Scant 1/2 cup water; 5 garlic cloves; 1 14-ounce can chopped tomatoes; 1 teaspoon ground cumin; 1 vegetable broth cube or vegetable broth; 2 small onions; 1/2 teaspoon ground ginger; 1 heaped teaspoon of dried oregano; 2-4 teaspoons of sugar; A pinch of ground black pepper; A small handful of fresh coriander or fresh parsley leaves; Fresh tomatoes (optional); Chili flakes (optional); Avocado, to serve (optional); 1 fried plantain, to serve (optional); Rice or quinoa, to serve (optional)