We call these babies « croustillons » and those are typical carnival donut here in Belgium.
Making the dough is super simple;
250gr of flour
150ml of tepid milk
1 egg
7gr of dry yeast
20 gr of sugar
20 gr of softened butter
4gr of salt
1 small pack of Vanilla sugar
Beat the crap out of it for about 5 mins

And after a while it has doubled its volume:

Deep fried for a couple of minutes

And then add a lot of icing sugar -------


You would enjoy the food of the American South
From the YouTube content I see definitively more than the northern part :) It all seems soooo juicy, limy, meaty… I reaaaaally wish I could get over there one day
Maybe wait a little while. Good news is that when it is safe to visit the exchange rate will probably be wildly in your favor.