Jörg,
Hello!
This recipe is one I put together with the use of the “Recipes” custom post type that is included in Intense. You can turn on this custom post type by going into the Intense admin options (Settings->Intense), then going to the Custom Post Types tab. In the list of active custom post types, check “Recipes” and then save the options. You will likely have to refresh the page for the new “Recipes” item to show in the WordPress menu, but upon refresh, you will have the new menu item. When you create a new recipe, you can select the single post template to be used. The template being used in the link you asked about is “One Column Boxed (text left)”.
If you need any help, please let us know.
Thanks!
Josh