I did a search here and didn't seem to find one. So, you might want to try:
Plug in potato chowder into the search box (chose recipes, although it works either way). Actually I just tried it and it works slightly differently. If you do an "Entire Site" search it only returns recipes from Cooking Light (6) with the exact potato chowder. If you do recipes, it returns a variety of recipes (more from Cooking Light, but also some from non-light sources). Hopefully you'll find something you like.
(Me, I wouldn't know a good potato chowder, so I thought I'd just point you in the direction.)