Where can I find Sauce powder in Ressen?

Sauce powder can also be found in these cities:

Arnhem Bedburg-Hau Dieren Doornenburg Giesbeek Heelsum Kleve Leuth Milsbeek Molenhoek Nijmegen Ooij Wageningen Zevenaar

You can also find this in Ressen:

Iced Tea Sunflower Oil Wine Sweet Potatoes Milk Energy Drinks Rice Red Wine Panettone Beer