On what date is Sweden's Day of Ostkaka observed?

Sweden’s Day of Ostkaka is observed on November 14.

Ostkaka is a traditional Swedish curd cake whose name literally means “cheese cake.” Despite the translation, it is quite different from American-style cheesecake: it is usually crustless, made by curdling milk with rennet, and baked until set. Sweden has two especially noted regional styles, from Hälsingland and Småland.

The dessert is commonly served lukewarm with whipped cream, jam, berries, or ice cream. Its two regional forms also differ in texture: Hälsingland ostkaka is firmer and smoother, while Småland ostkaka is softer and grainier. This regional distinction can cause confusion when “ostkaka” is treated as a single uniform recipe.

The annual observance began in 2004 and was established and promoted by Ostkakans vänner, or “Friends of Ostkaka,” a nonprofit organization founded the previous year. November 14 is therefore a food-calendar observance, not Sweden’s national day, which is June 6.