The manuals are online via panasonic.co.uk though there is a trick: if you follow the Products route on the menu, drill down to the correct model and choose Manuals (from the Overview/Specifications/Manuals menu), it says "No results found".

However if you go via the Support route, choose "Help me with my products", Downloads, search for "sd-254" or "sd-255", you get a link to the operating instructions as PDFs, which include the recipes.