Where can I find Baking soda in Seelisberg?

Baking soda can also be found in these cities:

Altdorf Buchrain Buochs Ebikon Einsiedeln Engelberg Goldau Ibach SZ Ingenbohl Küssnacht Lucerne Rotkreuz ZG Stans Unterägeri

You can also find this in Seelisberg:

Yogurt Pizza Flavors Honey Popsicle Meat Mineral Water Coffee Drinks Pretzel Cookies Canned Vegetables