Ingredients
Method
Make the Dough:
- In a large mixing bowl, combine the flour, baking powder, and sugar. Cut in the softened butter or margarine using a pastry blender or fork until the mixture resembles coarse crumbs.

- Add the sour cream and egg yolks to the flour mixture. Stir until the dough comes together, then knead lightly by hand. Divide into 4 portions, wrap in plastic wrap, and refrigerate for at least 2 hours (or overnight) to chill and firm up.

Prepare the Nut Filling:
- In a medium bowl, combine the finely ground walnuts, sugar, vanilla extract, and honey. Gradually add the egg whites one at a time until the filling is moist and spreadable, but not runny. Set aside.

Assemble the Cookies:
- Preheat oven to 350°F (175°C). Lightly flour a clean work surface. Roll out one portion of dough into a rectangle about ⅛ inch thick.
- Spread a thin layer of the nut filling over the dough, then roll up jelly-roll style. Slice into 1 to 1½-inch pieces. Place cookies seam-side down on a parchment-lined baking sheet.

- Repeat with remaining dough and filling.

Bake:
- Bake in the preheated oven for 15–20 minutes or until the bottoms are lightly golden. Allow to cool on the pan for 5 minutes, then transfer to wire racks to cool completely.

Optional: Dust cooled cookies with powdered sugar before serving.
- Enjoy!

