I know PA do it for $6.50 for 8ml. The price was alot dearer last time I looked, they must have reduced it. Plenty use it but it's not even approved for food use. Here is the PA description:-
Warning: Although tobacco absolute has been used as a flavoring agent in the cigarette industry,
it is not an FDA approved flavoring for food use.
This is a pure product derived from NICOTIANA TABACUM (Bulgarian)
It is nicotine-free and very strong!
Tobacco absolute is a thick liquid that is extracted from tobacco leaves. You can heat it gently to make it easier to work with. Very strong!