It's the same baking method- a Dutch Baby is just like a sweetened Yorkshire pudding/popover (but you can make them savory too). They're usually topped with fruit and sprinkled with confectioner's sugar. My personal favorite is a blueberry compote with lemon zest.

Most of that stems with a derivation of 'Deutch' and 'Deitsch' when german immigrants who settled in pennsylvania, they became known as "pennsylvania dutch": https://en.wikipedia.org/wiki/Pennsylvania_Dutch

It was more of a simplification due to dialect that became a regional colloquialism.