Winter Weekend trip up North? (Stockholm)

Hey guys! Does anyone have any good suggestions for towns to visit in the more Northern regions, ie Dalarna area, where it would be good to just rent a cozy cabin for a couple days, see some Christmas markets, drink Glögg and generally veg out?

Also if you know of any specific cabins IN the specific towns....that would be great advice as well!

Tack!
Jen