Semlor or Fastlagsbulle, this last word is more appropriate for the South of Sweden. I will adopt the last one as you may know, I have Malmö i mitt hjärta and it was Jakob who made them.
Fastlagsbulle is a bun flavoured with cardamon and filled with almond paste and whipped cream. Does it sound good for you? I can assure you that it tastes better. Fastlagsbullar are originally eaten on Shrove Tuesday but nowadays you can find and eat them the whole February. I have heard that king Adolf Frederick Of Sweden died after having eaten many, many, many fastlagsbullar.
One last thing. I have not be able to control myself and I have found an old picture...Malmö and I