Jane Ganz Chicago’s Favorite Hole in the Wall Custard Shop Written by agnes.miles on February 18, 2011. Posted in Around Town, Food Marcus cools off at a Chicago favorite for families and couples alike. Located in Oak Park, IL Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pinterest (Opens in new window)Click to email this to a friend (Opens in new window) Related Posts No related posts. Tags: custard, oak park Trackback from your site. Leave a comment Submit Comment Notify me of follow-up comments by email. Notify me of new posts by email.