Another Swedish dish from James's Birthday menu, these are one of the two best scalloped potato dishes I've ever eaten or made, the other being Cook's Illustrated Scalloped Potatoes with Thyme and Bay. What sets both of these dishes apart from the rest is the amped up seasoning. In the latter it's the thyme and bay, and in the former it's sardines. Yes, you read that right: sardines. But before you turn your mind off, like I almost did when I read the recipe, let me say that I didn't tell my guests what was in the potatoes until after everyone had already eaten quite a bit and said they'd loved the dish. It's just a psychological thing, sort of like when I introduced the hubs to sushi. I ordered several rolls, had him eat without knowing what he was eating, and to his surprise, his favorite things were the raw tuna roll and the eel sauce...on anything.
But if you're still a little nervous, like I admit I was when I first made the dish too, only use half a tin of sardines and smoosh them up a bit so they're evenly spread through the layers without any one big bite of them in a lump. But do try this. Like the hubs and his sushi, you might surprise yourself.