If my reading of the Google translated list of ingredients is correct, it is my supposition that the expression is to describe an introduced "artificial" flavouring derived from certain plant extracts. Your do not have a recipe, merely the list of ingredients in non specific but diminishing quantities. It appears to be a commercial product, and therefore difficult to re-create using 'real' ,fresh items.
I suspect better value, and probably better pickles, could be sourced at Lidl!