Provide a detailed and clear description of feature or change that you want to offer.
Having a recipe shown in JEI on how to craft the Ultimate Potions; as of 2.7.3 they have no recipe in JEI

Describe why you want this. If there's a reason.
JEI is the most downloaded mod ever, and the main source of information on crafting. (weird that JEI don't autodetect these though)
There is also no information in the in-game manual about this craft, only on the online Wiki here.
EDIT: the information are available ingame AFTER getting Astral Dust, for progression purpose I suppose?

Potion of Recall also have no JEI recipe, and I suppose Redemption just is uncraftable?

EDIT: the information are available ingame AFTER getting Astral Dust, for progression purpose I suppose?

It is unlocked in a manner similar to how vanilla recipes are unlocked - once you obtain key component required to craft the thing, the recipe will be revelealed, along with The Acknowledgment entry describing it.

Potion recipes do not show up in JEI because vanilla brewing registry is a horrible mess that is impossible to comprehend for anything there that isn't vanilla. I am not particularly interested in adding JEI compatibility myself since The Acknowledgment exists in part specifically to showcase those recipes. Not gonna mind merging it if someone makes a pull request on the matter, but otherwise I don't currently have time to investigate on JEI api and would prefer to prioritize many other things that await me to take care of them.

...and I suppose Redemption just is uncraftable?

Yes, it's just a creative tool for undoing what The Forbidden Fruit does, for there is no other way.

Completely understandable, thank for the quick answer :)

Better leave it open, so that potential contributors could be aware this suggestion exists. Not that I expect my mod to ever have anyone other than me willing to significantly contribute to the code, but just in case.