This is a simple variant of the typical German mayonnaise-based potato salad. This particular recipe comes from Upper Hessen.
This is a more modern, post-war rendition of what was a common dish for the working class. Ovens were unavailable to most people, so this would have been prepared on the stove or served at a canteen.
Dibbelabbes is a traditional fried potato dish from the rural regions of West Germany. This variant is fried on the stove like a traditional British or American potato hash.