Samanoo is the most delicious of the haftseen items... (https://afarinrava.blogspot.com/2022/03/haftseen.html)
... and the most difficult to make.
Most people just buy it in a jar from the store...
like I did as long as I had access to an Iranian store.
If you can find an Iranian store near you, get it and try it.
If you can't, here's the best recipe I've found online:
https://youtu.be/_DnyRStVb7Q
Enjoy!