1 ripe banana, 1 tablespoon vegetable oil, 1 small onion (diced), 2 cloves garlic (minced), 1 teaspoon curry powder, 1/2 teaspoon ground cumin, 1/2 teaspoon ground coriander, 1/4 teaspoon turmeric, 1/4 teaspoon red chili powder, 1/2 cup coconut milk, Salt to taste, Fresh cilantro for garnish