Where to hunt for Angelic Bless Recipe?

You should definitely hunt on a character near their level because there's a drop rate penalty that takes effect when you're above a monster's level, up until 20 levels above, at which point monsters will no longer drop anything but quest items and their etc drops. This doesn't apply to bosses or monsters above level 150, though.

As for where to hunt, I would say Master Death Teddies is a good place, and I've also heard of Triple Rumos in Magatia being popular, but I really can't say.