How should I roast bay nuts?
It's obvious why these nuts are not mass-produced: the environmental variables are just too disparate: 


you need to harvest them at the correct time
peel them correctly
wash them correctly
dry them correctly
roast them for the right time and the right T°


So that's why you're seeing a large number of methodologies on how to roast them: it &nbsp;d e p e n d s so we will not be able to tell you how to handle your nuts exactly ¯\_(ツ)_/¯ and you need to fall back to the empirical method.



As you've only got a jar of them, it doesn't make sense to put them in an oven as the quantity is too small.  That's the major difference between home cooking (small batch) and professional cooking (large batch) and in this case, you should use the non-professional method of dry-frying them instead:


Take a pan large enough to contain all of the nuts
Put the pan on medium heat and dry-fry one single nut
Put the pan on medium-high and dry-fry one single nut
Repeat with multiple heats and times until you've got the one single perfectly roasted nut


Now pour the jar in the pan ensuring the nuts are not stacked on top of one another and are all touching the base of the pan just like the one single nut did and repeat the process for the single perfect nut for all of the nuts you've got left in your jar.

P.S. And if you're still not totally nuts about how to handle these nuts, you might actually be able to enjoy your nuts! ;-)
P.P.S. Anyone else reading this who has an entire crate of these: yes you can use the empirical method for your particular oven, for your particular settings for your individual taste too... :-)