Hi there! Those ferns aren't easy to find. It is always depends on its environment. They are cheap in rural areas but in Manila it costs too much.
I have one recipe that you make like to try with pako..
Check this out https://steemit.com/motivational/@smafey/7mflx7-tuesday-quote
Wow Thank you for sharing your recipe my friend @mikemaphu . Ill check it. 😊