Where can I find Three-grain bread in Stans?

Three-grain bread can also be found in these cities:

Buchrain Buochs Ebikon Emmen Engelberg Goldau Horw Ingenbohl Kriens Küssnacht Lucerne Malters Rain Ruswil Sarnen Sempach

You can also find this in Stans:

Sugar Baked Goods Yeast Fresh Pumpernickel Breakfast Cereals Olives Drinks Dry Herbs Spaetzle Snacks