Where can I find Mayonnaise in Stompetoren?

Mayonnaise can also be found in these cities:

Abbekerk Alkmaar Castricum Dirkshorn Groet Hoogwoud Hoorn Medemblik Midwoud Oudorp Petten Sint Maartensvlotbrug Ursem Wijk aan Zee Zaandijk

You can also find this in Stompetoren:

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