Mix the Dough: In a large bowl, combine the all-purpose flour and salt. Add the cold, cubed unsalted butter and cream cheese, mixing until the mixture resembles coarse crumbs. Then, blend in the sour cream until a soft dough forms.

Chill the Dough: Shape the dough into a disc, wrap it in plastic wrap, and refrigerate for at least one hour.

Prepare the Filling: In a small bowl, mix the granulated sugar, ground cinnamon, chopped walnuts, and raisins.

Roll Out the Dough: Once chilled, divide the dough into quarters. On a floured surface, roll out each quarter into a circle about 1/8-inch thick. Spread the filling evenly over the dough.

Cut and Shape: Using a pizza cutter or sharp knife, cut the circle into wedges. Starting from the wide end, roll up each wedge tightly towards the point.

Bake the Cookies: Preheat your oven to 350°F (175°C). Bake the cookies for 20-25 minutes, or until golden brown.

Cool and Serve: Let the cookies cool on the baking sheet for a few minutes before transferring them to a wire rack.