Where can I find Sauce powder in Steineroth?

Sauce powder can also be found in these cities:

Betzdorf Breitscheidt Daaden Döttesfeld Gebhardshain Hachenburg Höhn Kirchen (Sieg) Netphen Reichshof Röthenbach Siegen Waldbröl Weitefeld Wissen

You can also find this in Steineroth:

Everything From Milk Baking Mixtures Cream Stiffener Spreads Savory Food For Diabetics Menus With Meat Fruit Spritzers Filter Coffee Baguette Roll Salt Sticks