The bakes that travelled

This is the one collection here that is not a region. Norway's other four are geography — a coast, a valley system, an archipelago, an Arctic homeland. This one is a shelf: the Norwegian baking that people outside Norway are most likely to have met, together with the older festive canon it grew out of. Grouping it that way is a choice about how the archive reads, not a claim that these bakes belong to no particular place. Lefse is very much a farm bread of the eastern valleys; the skillingsbolle is Bergen's; the Christmas biscuits belong to whichever kitchen baked them.

What binds the modern half is a grammar rather than a recipe. An enriched wheat dough, milk and butter worked in until it is soft enough to be almost slack, freshly ground cardamom, a long slow prove, and a filling of butter creamed with sugar and cinnamon. Change the shape and you change the name: coiled flat for a skillingsbolle, knotted for a kanelsnurr, rolled round for a kardemommebolle, split and filled with vanilla custard and coconut for a skolebrød. The dough underneath is close to the same one, which is why learning it once opens most of this collection.

Cardamom is the ingredient doing the heavy lifting, and it is worth being specific about why. Ground cardamom loses its volatile citrus-eucalyptus note within weeks; whole green pods cracked and ground just before mixing do not. Nearly every recipe here that tastes distinctly Norwegian rather than generically sweet tastes that way because of that one step. Pearl sugar, brunost and thick soured cream do the rest of the regional work.

The other half of this shelf is older and, in Norway, more deeply set: the syv slag, the seven sorts of small Christmas biscuit a household was once expected to have ready before the holiday. Berlinerkranser looped from hard-boiled egg yolk dough, serinakaker pressed with a fork and scattered with almond, sandkaker moulded into fluted tins, goro and krumkake baked on decorated irons that leave their pattern in the surface, fattigmann cut into diamonds and fried. They are small, dry and made in quantity because they were made to keep, and the tradition is about the tin as much as the biscuit.

A word on the name. "Viral" here is a fact about distribution — these are the bakes that travelled — and nothing more. It is not a ranking, a quality claim, or a statement that they are better, more authentic or more popular than anything in the other four collections. Norcook does not rate recipes and does not publish view counts or popularity figures. What can honestly be said is that a photograph of a cross-sectioned cardamom bun carries further than a photograph of a bowl of rømmegrøt, and that this collection is where the archive keeps the ones it carried.