Cocoa Tonka Bean Spirals

1. 1

   In a bowl, mix the flour, sugar, egg yolks, and butter. Knead by hand until a ball is formed. If you have a robot, place this mixture in the bowl with the robot fitted with the hook. Divide the dough in two equal portions, and place in two separate bowls.

2. 2

   In one bowl, add the cocoa, and mix with dough, forming a ball again.

3. 3

   In the other bowl, grate half a tonka bean (if you can't find one, leave the dough plain or stir in the seeds of a vanilla bean), mix well, and form the other ball.

4. 4

   Wrap the two dough balls separately in plastic wrap, and refrigerate for at least 1 hour.

5. 5

   Remove from the refrigerator and knead the balls separately to loosen up the dough a little bit.

6. 6

   Spread the cocoa dough on a floured surface, and right next to it, spread out the tonka bean dough. Overlap the two and roll them together. Wrap the dough strand tightly with a plastic wrap. Refrigerate for about 30 minutes.

7. 7

   Preheat oven to 400 degrees Fahrenheit.

8. 8

   Remove the dough strand from the plastic wrap using a knife, cut into 3 to 4 millimeter slices. Arrange the slices on a baking sheet lined with parchment paper.

9. 9

   Bake for about 10 minutes.

10. 10

    Cool on a rack.

* Per serving · 4 servings · Values may vary.