Where can I find Mashed potatoes in Fernwald?

Mashed potatoes can also be found in these cities:

Bad Nauheim Butzbach Giessen Langgöns Lich Lollar Mücke Münzenberg Nidda Pohlheim Reiskirchen Rockenberg Wettenberg Wetzlar

You can also find this in Fernwald:

Coriander Food Juniper Berries Potatoes Nectarines Grapes Green Beans Beet Starting Milk Dresden Christmas Stollen