Where can I find Mega burger bun in Buochs?

Mega burger bun can also be found in these cities:

Altdorf Buchrain Ebikon Emmen Engelberg Goldau Horw Ibach SZ Ingenbohl Kriens Küssnacht Lucerne Malters Rain Rotkreuz ZG Sarnen Sempach Stans Unterägeri

You can also find this in Buochs:

Vegetable Oil Prosecco Aquavit Confectionery Potato Specialties Salami And Permanent Sausage Milk Baking Ingredients Beer Jam