This is not part of the farmers market per se but it is one of the reasons we went there, mainly so we could go to Schwartz's and also Patisserie Kouign Amann. At Schwatz's John had the smoked meat sandwich (I don't know what happened to the picture but the sandwich was huge) and we bought 4 pounds of smoked brisket and a big jar of their pickles. At Patisserie Kouign Amann we bought a 12" kouign amann and 2 chocolatines.
All in all a great day except for the driving in downtown Montreal.
Edited to add: the picture of Schwartz's is for @rotuts. It was taken when we left the place. When we first got there, the restaurant was jammed and I'd guess there were at least 50 people lined up to get in.