Where can I find Sauce powder in Dürnstein?

Sauce powder can also be found in these cities:

Gansbach Gföhleramt Herzogenburg Krems on the Danube Langenlois Lengenfeld Mautern an der Donau Paudorf Sankt Pölten Sattledt Spitz Traismauer Weinzierl am Walde Weißenkirchen in der Wachau

You can also find this in Dürnstein:

Baking Soda Rusk Food For Diabetics Menus With Meat Filter Coffee Canned Fish Fat Spirits Aroma Pack Soups