Oh god, its is finally here!
The one and only MineTweakerRecipeMaker!
This mod creates the .zs file on the server's side, that is why you need the mod on the server too (and need to be op). (Although you can join a server that does not have the mod, you just won't be able to use it.)
This mod has no relation with MineTweaker itself, and MineTweaker is not a dependency. Although this mod is utterly useless without it :p
Warning, this mod is not idiot proof, but it tries to be. :p Please post bugreports, so we can make it more idiot proof!
Command: "/mtrm" or "/MineTweakerRecipeMaker"
We have downloads on curseforge and on our website (more up to date).
As per usual this mod is open-source, you can see the license here