Lupini beans, we call them in Lebanon "Tormos", are one of my favorite snacks, I love them with beer. You can get them dry or you can get ready to eat in jars soaked in water and salt from Middle Eastern stores or online. They are highly nutritive and close to soy bean protein in content.
Soak Lupini Beans overnight in water (1 cup is enough for few people). Drain and add fresh water and simmer for one hour. Then drain off all the water and add fresh water at least twice a day. Keep changing and adding fresh water till bitterness disappears, which might take up to 5 days or more. Sounds difficult? Well yes it is, cause they are bitter and you have to get rid of all the bitterness until they are soft to chew on and edible. This is why I like to buy them ready to eat. And when they are ready to eat, you can keep them in the refrigerator soaked in water and some salt too, but you still have to change the water every now and then. To serve them, drain the water, sprinkle salt and serve. To eat them, you have to discard the skin and eat the bean only.