unfortunately Pancake does not have an official init script yet. However, a friend of mine has written an init script for Pancake some time ago that usually should work fine.

Download http://dev.pp3345.net/pancake-init and copy the script to /etc/init.d/pancake. Make it executable by using chmod +x /etc/init.d/pancake. Then run update-rc.d pancake defaults to automatically execute the script on boot and shutdown. You can also use this script for starting and stopping Pancake by running /etc/init.d/pancake start or /etc/init.d/pancake stop. Use sudo for those commands, if necessary.

Kind regards,
Yussuf Khalil
Pancake Support