My latest panettone was taken from the master of panettone, Francesco Elmi. It's made without commercial yeast. Its ingredients; lievito naturale, butter, citrus and raisins. Here I replaced the rasins with wonderfully spiced chocolate chips - a wonderful gift from spice master Lior Lev Secarz of La Boite . Thanks, Lior! Still need to tweak some issues, but oh so good.