Bornholm sits out in the Baltic, closer to Sweden than to Copenhagen, and the island has always cooked with a certain independence. The food there is shaped by smoke and salt and rye and the particular stubbornness of people who live surrounded by cold water. These rugkiks belong to that tradition: dark rye crackers, layered with butter through a lamination that builds twenty-seven distinct sheets of dough into something that cracks sharply when you break it and dissolves into warmth on your tongue.

The technique will feel familiar if you've ever made puff pastry, and entirely new if you haven't. You make a firm rye dough, wrap it around a slab of cold butter, and fold it three times, chilling between each fold. Three folds of three. Twenty-seven layers. That's the architecture. When the crackers hit the oven, the butter between those layers turns to steam and pushes them apart, giving you a crispness that solid rye dough could never achieve on its own.

Don't let the lamination intimidate you. Each fold takes two minutes. The fridge does the rest. What comes out of the oven keeps for weeks in a tin, ready for the moment someone arrives and you set out cheese, butter, and a glass of cold dark beer. You'll know when they're right: they snap cleanly when you break one, and the layers are visible at the edge. That's all you need to see.