出典:Wikipedia
出典:『Wikipedia』 (2010/06/02 00:26 UTC 版)
Blue cake (German: Blauer Kuchen) is a flaky pastry that is a specialty of the Frutig valley (the lower part of the Kander valley consisting of the municipalities of Aeschi, Reichenbach, Frutigen and Kandergrund) in the Bernese Oberland, Switzerland. It consists only of puff paste with no filling or other ingredients. Despite its name, it is not blue.