Where can I find Butter in Werthenstein?

Butter can also be found in these cities:

Buchrain Ebikon Egolzwil Emmen Hitzkirch Horw Huttwil Kriens Lucerne Malters Oberkirch Rain Ruswil Sarnen Sempach Stans Sursee Urswil Wolhusen Zell

You can also find this in Werthenstein:

Honey Popsicle Meat Mineral Water Coffee Drinks Pretzel Cookies Canned Vegetables Margarine Sparkling Wine Alcoholic Mixed Drinks