Vanilla Walnut Crescents

Directions

1. 1
   In a large bowl, combine flour and salt; cut in butter until mixture resembles coarse crumbs. In a small bowl, whisk the egg yolk, sour cream and vanilla; add to crumb mixture and mix well. Cover and refrigerate for 4 hours or overnight.
2. 2
   Divide dough into thirds. On a lightly floured surface, roll each portion into a 10-in. circle. Combine the walnuts, sugar and cinnamon; sprinkle 1/4 cup over each circle. Cut each circle into 12 wedges.
3. 3
   Roll up each wedge from the wide end and place point side down 1 in. apart on greased
4. 4
   . Curve ends to form crescents. Whisk egg white until foamy; brush over crescents. Sprinkle with remaining nut mixture.
5. 5
   Bake at 350° for 18-20 minutes or until lightly browned. Remove to wire racks to cool. Store in an airtight container.