We can all stand a little Moorish in our lives. ;-) The original recipe would have been made from lamb or goat. Upon driving the Moors out of Spain in 1492, the free peoples of Spain wanted to reinforce their independence by celebrating the thing their previous overlords forbid, eating pork. It’s no coincidence that Spaniards love pork to this day as it is a direct response to their turmoiled past. If you must, use lamb or chicken.