Where can I find Sauce powder in Ammerzwil?

Sauce powder can also be found in these cities:

Belp Bern Biberist Biel Bienne Bremgarten bei Bern Brugg Derendingen Gerlafingen Grenchen Gümligen Hinterkappelen Ipsach Ittigen Kerzers Kirchberg Köniz Langendorf Lyss Murten Münchenbuchsee Neuenstadt Nidau Ostermundigen Solothurn Tavannes Tramelan Utzenstorf Worb Zollikofen Zuchwil

You can also find this in Ammerzwil:

Pudding Decorative Sugar Three-Grain Bread Cereals Delicatessen Sausage Spice Pastes Mashed Potatoes Raisin Roll Canned Sausage