Where can I find Sauce powder in Siershahn?

Sauce powder can also be found in these cities:

Altendiez Dierdorf Diez Dortmund Döttesfeld Hadamar Hundsdorf Höhn Koblenz Lahnstein Limburg an der Lahn Montabaur Mudershausen Nassau Neuwied Oberhonnefeld-Gierend Peterslahr Röthenbach Urbach Wallmerod (Westerwald) Wirges

You can also find this in Siershahn:

Tea Loose Wine Clinical Thermometer Washing Lotion Panty Liners Cold Bath Stain Remover Everything From Milk Baking Mixtures Cream Stiffener