In addition, make sure that your Web browser is the front-most application (not MacGourmet Deluxe) when you attempt to access the Services menu item.

Services are used to send selected text from an application to another one that is sitting in the background. You don’t want to have MacGourmet Deluxe in the foreground; instead, you want to select the Webpage address in the Web browser, and then choose (if using Safari):

Safari > Services > MacGourmet Deluxe > Import Recipe from Web Page.

You want to make sure that you don’t switch to MacGourmet Deluxe, because you want to send the selected text from Safari to MacGourmet Deluxe, so Safari has to be in front.