Use Google's advanced search.
http://www.google.com/advanced_search?hl=en
Use the all box for the terms you want to search for.
Then set the Domain to Only (should be the default) from the dropdown list and enter
www.discusscooking.com in the text box on that same line.
Note the text in the results search field. You can shortcut the process with the "site:"command, but that's a bit arcane to describe.
thymeless