It's not bad boiled in stews but for a white boy's taste buds, trim off EVERY scrap of fat.
I could write a book on eating seal meat. I am 66 and been eating seal all my life and have eaten lots Inuk ways and Newfie ways. The most way we hunt seals is shooting or waiting at the air holes and get them with harpoons - either way they are well bled. No one nets seals anymore - that was when people had dogs to feed and skins were worth something. Now people just hunt a few every year to eat. Young seal is the best.
Start with the fat comment. Fresh seal or seal that has not been frozen too long the fat is OK and adds favour the same way pork fat adds favour to a pork roast. U don't have to eat the fat but it adds favour. If in the freezer too long then the fat gets what we call "smatchie" or "pujak" the same as freezing salmon or char too long unless u vacuum pack. Never tried vacuum packing seal. Only way I know how to keep it long and still be right good is bottled or canned. Prevents the fat from oxidizing as nil air in the bottle.
Seal is an acquired taste and most who do not grow up with it never acquire that taste. They politely try it and most don't come back for seconds.
Seals are like every other kind of animal. A lot depends on what u kill i.e. kind and age of seal and how it is treated after killed. Old dog seals/tigak that are breeding are really poor kind of like bulls that are rutting.
The Newfie way is to trim every bit of fat - waste of time with fresh seal but it is still done out of habit. That came from years ago and the seal meat getting a bit old and the rancid/smatchie/pujak of the fat is exactly that and u have to trim it.
Best way I like seal is boiled ribs off young ones. Big treat every spring here. Those would be the jar/ringed/nutsik seals that we hunt at the air holes in the ice. Young beaded/lazzie/utjuasuk seal really good too.
Could write a lot more but I think most would not be interested where it is not apart of most people's lives. Even across the north these days people go increasingly to store food.