CakePoet, those look awesome!
yeah I can see giving up on herring, reminder of difficult times, I also have some Russian friends that dislike preserved fish, might be seeing a pattern...
If y'all are interested I have a thought of an idea of replacing lindonberries with blueberries, rasberries and lemon.
I will make your recipe my friend, and for once have a honest Swedish meatball.
sourdough isn't a recipe, it is a process.