Well, I got through to Zuckers Bakery in Peabody. I asked about Montreal bagels - he doesn't make them, & he told me why.
Thought I would share the info.
Mr. Zucker is from Montreal, (his father makes bagels there). He said can't make them here in Massachusetts because of two things:
1. The water - he said the water here is different, (I've heard the same said about N.Y. bagels)
but most of all because
2. The State of Massachusetts considers the brick ovens that are used in Montreal to be a fire hazard.
So now we know why no one carries Montreal bagels around here!
(He also said, regarding bringing bagels back from Montreal & then freezing - he thinks that the texture is just plain awful after they are frozen.)
But as far as the challah (and he mentioned cookies, too)...
He told me that he is open Tues., Wed., and Thurs. til AROUND 4:30 (call ahead). Sunday (& I think he said Mon., also) is a half day. He supplies Trader Joe's and Market Basket, & will make babkie (sp.? - my family says 'babka'), if you call a day or two ahead.
Many thanks to Sara for finding the telephone number!
Peabody, MA 01960