This Yemeni version of kofta kebabs is adapted from Mohamed Almuhtadi. You can grill or bake the meatballs. Note that the mixture holds onto the skewers much better if you let it rest overnight and make each skewer just before grilling it. Almuhtadi makes a slightly different shape by placing only one thin kebab on each skewer, but you can add more. You can use metal or bamboo skewers; if bamboo, soak in water 30 minutes beforehand.