Just remembered a rather unique situation of mine.
My Sim (Natasha, these days going by Sasha) died unexpectedly. I decided to go the 'resurrect her in the game' route.
Wishing well (Plan A) only gave her an angelfish (an ingredient of ambrosia). Therefore I decided to send them to the magic realm (them being my Sim couple), which they had access to though story and purchase a death flower from the vendor. Potion of youth is, of course, a rewards store item. Well I didn't want to have to cheat my Sims top levels in cooking and gourmet cooking so I cheated to move in a new Sim whom I gave the requisite skill. Sabrina is now a good friend of the family. (She didn't live with them...)