Where can I find Sugar in Werthenstein?

Sugar 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:

Sandwich Bread Hot Dog Bun Rum Lollies Whole Wheat Toast Candy Baguette Yeast Dry Rye Breads Granola Bar