Crescent Tarts

Pour flour into a bowl and cut in butter until the mixture resembles coarse crumbs. Stir in sour cream, cover, and chill dough in the refrigerator overnight.

Preheat oven to 350 degrees F (175 degrees C).

Combine sugar, chopped nuts, and cinnamon in a small bowl.

Divide chilled dough into quarters. On a lightly floured surface roll out dough into circles 1/8 to 1/4 inch thick. Cut into wedges and sprinkle with the nut mixture. Roll up into crescent shapes, starting with the wide end first.

Bake cookies on a parchment lined baking sheet at 350 degrees F (175 degrees C) for 20 to 25 minutes.

Sprinkle cooled cookies with confectioners' sugar.