Skyr (Strained Cultured Dairy)
Original
Skyr is named in multiple Icelandic sagas and the Grágás law code. Specific references include Egil's Saga (ch. 74) and Grettir's Saga (ch. 28). It is not a "recipe" in the cookbook sense but a named food product attested in multiple literary and legal texts.
Serra & Tunberg, An Early Meal (Chronocopia, 2013) and Wolf, Daily Life of the Vikings (2004) discuss skyr in scholarly context.
Documentation style: Literary + legal attestation (saga references, law code). No manuscript recipe with proportions exists. The product is defined by its method (strained cultured milk) rather than a written recipe.
My Redaction
Skyr is a living Icelandic tradition, now commercially available worldwide. The traditional method: warm whole milk, add a small amount of existing skyr (or buttermilk) as culture, let curdle overnight, strain through cloth until thick. The result is between yogurt and fresh cheese.
For hospitality service: Commercial Icelandic skyr (Siggi's, Ísey, or similar) is an authentic modern product. Serve in a bowl with honey, berries, or plain. Pairs with Birka Flatbread and Gravlax for a Scandinavian documentation cluster. Needs cooler.
For documentation purists: Make your own by culturing whole milk with a skyr or buttermilk starter, then straining. An Early Meal (2013) provides method guidance.