This is most likely a duplicate post, but through searching I never found it.
I have found that the most simple and easiest way to de-seed and membrane a jalepano is with an apple corer.
OK- my version of a step by step:
Start at tip and work to stem area:
The finished look:
10 minutes for one dozen and simple as simple can be. Hope this will help some one out there.
Thanks for the look!