PA state parks have a number of cabins for rent; some of them are open in the winter. There are a number of caveats, mainly that weekends get snapped up far in advance, and ones near snowy (ski) areas and major metro areas are booked. But the system does allow for late cancellations without much penalty, so it's worth checking for cabins to come available. If you include out of the way areas, there can be a ton of stuff still available even on weekends (e.g. Pymatuning State Park, bunch of heated cabins, full kitchen, indoor bathroom, sleeps 6, pets allowed) https://pennsylvaniastateparks.reserveamerica.com/camping/pymatuning-state-park/r/campgroundDetails.do?contractCode=PA&parkId=880226#sr_a

Airbnb, focus on the northwestern region of the state

It goes without saying that you should probably check a snow cover map beforehand.

VRBO or AirBnb in the northwestern part of the state will have what you’re looking for.

My friends stayed at Linn Run State Park last year in the snow and gushed about how relaxing it was. I don't think they were really impressed with the cabin itself, but it got them where they wanted to be.

https://www.dcnr.pa.gov/StateParks/FindAPark/LinnRunStatePark/Pages/Stay.aspx

I would check the DCNR web site and see if any state parks on the north/central part of the state have cabins you'd be interested in.

If you want snow, head to the mountains of Vermont or New Hampshire or upstate NY near Lake Placid. No guarantees of snow in PA.

Amtrak Vermonter or Montreal

Vermonter, Ethan Allen and Adirondack both sound pretty scenic. But how does one get from the station to the cabin?

I was ice fishing lake George this spring and the Amtrak Adirondack wasn’t running.

Their website says they’ve resumed service, but it looks to be extremely limited. The stations from Ticonderoga up to Plattsburgh as essentially phone booths.

Are you trying to finish off that novel of yours?

Just remember, stay away from Room 237, ok?

Sylvania Tree Farm up along the river near Delawate Water Gap used to have rentals of various types and sizes, very well run

I think the Vermont train is pretty busy w nyc people heading to ski. There is a stop at rutland for killington area as I recall.

I’ll add that there are no guarantees up there either as it’s possible there could be a warm spell, but you will most likely be seeing snow.

In PA it’s more likely that there would be no snow than the winter wonderland you’re envisioning. So yeah, go north. Northern Vermont generally gets the most snow.

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The poconos is nice and beautiful when it snows but can’t always count on snow in pa.

Cook’s Forest. There’s a private place next to the forest with cabins and rooms, and when we were there 7+ years ago, awesome food

I stayed in a little cabin at Forest Ridge Cabins and Campgrounds a few years ago near Cooks Forest in Marienville, PA. I enjoyed my stay.

www.ForestRidgeCabins.com

As I recall, cabins have bunk style beds. I've stayed in rustic and ones with kitchens. Do any have full, queen, king beds?

Yes, larger improved cabins which sleep six or more can have one BR with bunk beds, and a second BR with a queen. Cabin details on the reservation site should specify, and frequently include photos