Rua Potatoes This page first published: Apr 17, 2005 · Updated: Jun 1, 2018 · by CooksInfo. Copyright © 2021 · This post may contain affiliate links · This blog generates income via ads · Rua are oval, short potatoes with light-yellow skin and white flesh. They are marketed as all-purpose for direct to consumer sales, but if anything, they are best treated as waxy. They have good flavour. Popular in New Zealand.