This recipe is adapted from the one found in Paula Wolfert's "Couscous and Other Good Foods From Morocco". It should be stated that traditionally, the soup is made with meat, usually lamb. However, my husband (who is Moroccan) doesn't like it with meat, and so I came up with a meatless version; the broth cube adds some "meaty" flavor. Also, garam masala is Indian, not Moroccan; however, it is close to the Moroccan spice "ras el hanout" and adds a good flavor to the soup. This soup is traditionally prepared during Ramadan, the Muslim month of fasting; however, it is good at any time, especially when cold weather arrives.