It’s called ‘oliebollen’ in Belgium and the Netherlands. They also have derivatives with apple inside and some other ones.
Not sure which came first though ( us or be/nl ).
Roasted butter does sound better than the literal translation from dutch ( oil balls ).
Edit: the wiki page references them being invented in the us. The wiki page for the Dutch/Belgian variant mentions Spanish/Portuguese Jews when fleeing the the Netherlands from the Spanish inquisition.
At least I think they’re the same as roasted butter
Looks like it’s not the same then! I stand corrected.