Where can I find Sweet mares in Straßenhaus?

Sweet mares can also be found in these cities:

Andernach Bad Honnef Dierdorf Dortmund Döttesfeld Hundsdorf Hünxe Koblenz Linz am Rhein Mülheim-Kärlich Neuwied Nickenich Oberhonnefeld-Gierend Peterslahr Plaidt Remagen Urbach Waldbreitbach Weißenthurm Wirges

You can also find this in Straßenhaus:

Vegetable Juices Instant Iced Coffee Cheese Roll Canned Fish Fat Sauce Powder Spirits Stews Bakery Products Red Wine