At the Iglesia de Santo Domingo el Antiguo (Toledo)
they sell mazapán. You'll find all the information at their website.
Also, in my site you'll find a list of places in Madrid selling pastries made by nuns / friars. It's at the "Actual News" section. I'm sorry that I haven't been able to update this
. I'm studying at the university and I don't have enough time to update / redesign my site. Hope some day I put online a new improved version.
PS: By the way, remember that these nuns/friars are not a factory. Don't order tons of them and let other people enjoy also of those wonderful pastries.
[ 06-09-2001: Message edited by: Antonio ]