Once the beans are done, put a soup pot onto the stove and turn the heat onto medium. Once the pot is heated, add the oil or ghee and, after a moment, add the cumin seeds. Let the cumin seeds fry for 30 to 40 seconds and then add the minced onions. Fry the onions until they are starting to brown and then add the garlic. Fry another minute and then pour the cooked beans and their water into the pot--be careful to pour away from yourself as when the liquid hits the hot onion/garlic mixture it will steam and splutter.