Where can I find Mega burger bun in Doppleschwand?

Mega burger bun can also be found in these cities:

Egolzwil Emmen Horw Huttwil Kriens Langnau im Emmental Lucerne Malters Oberkirch Rain Ruswil Sarnen Sempach Sursee Urswil Wolhusen Zell

You can also find this in Doppleschwand:

Canned Sausage Oil Smoothies Brandy Fruit Jelly Frozen Herbs Bacon And Ham Pudding Decorative Sugar Three-Grain Bread