I actually had to eat it. My wife is Norwegian, born in Minnesota. It was mandatory at Christmas dinner. One year only. I threatened to not go next Christmas.
There’s a mashed potato ratio per teaspoon of lutakisk where if you mix them, you can get it down, then gargle with kerosene afterwards.
We had to eat a piece of Lutefish every Christmas Eve smorgasbord before we could leave the table. Massive amounts of mashed potatoes and butter to gag it down! Oh the memories!