This is a favorite cookie from my husband Rob's youth. His mother passed the receipt down to him, and now make them as part of our family tradition.
The Viennese Crescents are also called Vanille Kipferl in Austrian, German, Czech, Slovak, Polish and Hungarian which are small crescent shaped biscuits. They were originally made with walnuts, but may also be made with almonds or hazelnuts.
Vanillekipferl originate from Vienna, Austria, and are a specialty of the Bavarian town of Nördlingen. Traditionally, they are made at Christmas and are very well known in Europe. Thus, they can be enjoyed all year long and are often for sale in Viennese coffee shops.
I make mine with almonds.