A swedish pastry of french origin where it was called a "Swedish" ? 
Never heard of it... Interestingly, Mandelberg, in France, is a wine from Alsace
Well, Mandelberg is a combination of the 2 german words:
Mandel=Almond
Berg=Mountain or Hill
So it could mean:
a) Hill of Almonds
b) another hebrew/jewish name (like Steven Spielberg; btw Spiel=Game)
a) would be an explanation, if the cookies are made of Almonds
I personally think b) is a better explanation, because it sounds more likely, that both (wine and cookie) were made by jewish creators. Think about the famous name
Rothschild, and their famous and very expensive
wine.
Since the mediaval age many jewish Families lived in parts of the holy roman empire of german Nation. They called themself:
Ashkenazi Jews. They were very successfull in mediaval and later Germany. In that time, they also created the
Yiddish language, that is based on the mediaval german language. I, as german, can understand most parts of this language, when i hear it in movies...as most words are very similiar to actual german words. I bet in that time they also chosed or got (from Germans) those family names. So many jewish people until today have family names, build from german words like: Tree Hill Red Green Stone Fruits etc. And many times build from 2 Words of that kind, like:
Birnbaum=Pear Tree
Spielberg=Game Hill
Rothschild=Red Shield
Einstein=One Stone
sometimes also created only from one german Word, like:
Bernstein= there is no german word for Bern asfaik, but Bernstein means in german language also "amber"
Sigmund Freud from the german word Freude=Joy
Gustav Mahler, where Maler means "Painter".
Ok...long story short....i bet the cookie and the wine were orginally created from jewish families....so thats the story behind, why both have same name.
Sorry for kidnapping this Paradox Thread for a historic explanation. */me ashamed*