Where can I find Cake glaze in Hennef (Sieg)?

Cake glaze can also be found in these cities:

Bad Honnef Bonn Bornheim Cologne Hünxe Königswinter Lohmar Meckenheim Much Niederkassel Overath Peterslahr Ruppichteroth Siegburg Troisdorf Wiehl

You can also find this in Hennef (Sieg):

Milk Baking Ingredients Beer Jam Vinegar Beef Spices Cocoa Normal Rolls Acid Preserves