Find an Asian market. Go to their international isle. Look for grace brand or wildwood brand.

The issue is that it's nearly impossible to get scotch bonnet peppers and habanero are not the same.

Also authentic jerk is smoked over pimento wood (pimento is what they call the allspice berries) so even having everything else authentic doesn't guarantee it's going to taste the same.

If you insist on doing your own https://jamaicacafe.org/jerk-chicken/ is pretty much it. And use real fresh ginger, not the pre mushed paste in a tube (if you get a micro plane and freeze the ginger you can quickly grate what you need) and it must be scotch bonnet peppers.

My late wife was from Jamaica.

Also try the Saturday chicken soup https://originalflava.com/soups-and-stews/chicken-saturday-soup/ get some packets of pumpkin soup and use that powder instead of the chicken soup they suggest and use knorr bullion powder for the broth.

Sorry, most of the Jamaicans I've met have been really kind

I think it's normally not a rub though? It's a marinade.

I highly recommend this channel for any and all Jamaican foods: https://youtube.com/@feedandteach

Here's his Jerk marinade video: https://youtu.be/buq4Bbpe-RY

Define what you mean. What makes one more authentic than another. How would it be bastardized? Lot of everyday spices in it. Allspice and thyme are the big components in my mind.

Jerk rub.... I'm currently

I went for jerk a few weeks ago and it was the marinated version not the rub version and I was crestfallen.

https://youtu.be/DfGYqQzeMZc