Where can I find Frozen herbs in Oberarth?

Frozen herbs can also be found in these cities:

Altdorf Baar Buchrain Buochs Cham Ebikon Einsiedeln Emmen Goldau Horw Ibach SZ Ingenbohl Kriens Küssnacht Lucerne Richterswil Rotkreuz ZG Stans Steinhausen Unterägeri Urswil Wädenswil Zug

You can also find this in Oberarth:

Vodka Infusion Bag Dried Fruit Preserving Ingredients Seafood Mixed Rolls Baking Soda Rusk Food For Allergy Sufferers Potato Dishes