Topinambu, also known as Jerusalem artichoke brandy smells fruity and has a slight nutty-sweet flavour. It is characterised by an intense pleasing earthy note. – Wikipedia
Made in Germany from the tubers of the Jerusalem artichoke (Helianthus tuberosus), also called sunroot, sunchoke, earth apple.
Topinambur is also known as Rossler, also available is Red Rossler, a somewhat bitter and astringent decoction used as digestif made by the addition of currants or tannin containing tormentil.