Description of the Bug
Recipes like the Essence of Death do not work.
I am following the instructions exactly. 1 Zombie Heart, 1 Zombie Flesh, wait for colour change, 2 bone meal and stir twice immediately and then wait for colour change, finally a Charcoal, not coal. And then it fizzles out.

Edit: More then one crafting Recipe have in the Handbook and JEI the stirring listed before the adding of the new Ingriedient

Environment
Modpack Valhesia 3 for 1.16.4 both Multiplayer and Singleplayer. Mod Version 0.2.7

After i looked in the Code i saw that the Recipe in the book is kinda misleading, 1 Zombie Heart, 1 Zombie Flesh, immediatly stir twice and then add 2 bone meal, wait for color change (its a green) then add the charcoal. so the problem is that adding the item and stirring are changed.

This issue should be re-opened, I encountered the same problem and this is the only place a solution has been presented.

I also wrote that reply on a Post on the Feed the Beast Subreddit. There had someone the same Problem but i closed this one because it works, And you can see this thread so i just hope the Author fixxes this with the next Version.

Okay its Reopened and Titel updated updated to clarify the problem

It would likely be preferred to keep this open so that the developer can keep track of the issue easily and close it when it has been solved.

Not sure what the error is. The crucible recipe for Essence of Death in the book (reading from the code) is:

1. Add a zombie heart and rotten flesh.
2. Add two bonemeal, and stir twice.
3. Add a charcoal.

Each step corresponds to a single color change. I've cross-checked both the book chapter (CodexChapters.java) and recipe (CrucibleRegistry.java) and they are defined identically. Maybe you're just misunderstanding the mechanic?

As I've become a bit more familiar with the process, I can see where the confusion is coming from;

Essentially, if you're not quick enough with the stirring before the item is consumed, it fails, as the item alone is counted as a stage.
It may be worth noting in the book that this process is time sensitive.

EDIT: I'd just like to clarify that it's the item that is time sensitive, not the stirring. This is why performing the stirs before tossing the item in is more reliable.

Ah after your Comment I tested all a bit more and now its working every time. It was my bad i saw it not as a hole step and took to long to stir. So yeah i didnt understand the mechanics correctly sorry for that and thanks for your help.

I hope you keep up the nice work.