French fries with mayo would be considered a standard snack in Belgium, Scandinavia and many other places in Europe, but only in the Netherlands does this cultural fusion exist. In Dutch patatje oorlog means "war chips" and is a tasty combination of French fries, mayo, raw onions and Indonesian sate sauce.
Sate is one of Indonesia's most famous dishes. A spicy mix of peanuts, turmeric, ginger, kecap manis, chili and other regional spices are blended with coconut milk as a sauce for various meat skewers. The colonial spice trade brought this dish back to Holland, and like rijsttafel has been assimilated into Dutch culture.
I don't have a relevant video for this post, so watch this crazy Dutch commercial.