Magic bullet broccoli,lentil and chicken soup

Heat 1 table spoon butter and sauté 1/4 onion. Add 1 cup water. Let it boil. Blend 1 cup boiled broccoli, 1/2 cup cooked chicken, 1 cup cooked green gram , 1 tsp salt and 1 cup milk. Add this to the stock and cook well until done.Add 1 table spoon corn flour mixed with water to thicken the soup. Serve hot.