Ingredients
Method
Preparation
- In a bowl, whisk together the flour, baking powder, and salt until evenly distributed; set the bowl aside.
- In a separate large bowl, cream the softened butter and granulated sugar with a mixer on medium speed until the mixture is light, pale, and fluffy.
- Beat the large egg and vanilla extract into the creamed butter and sugar until fully incorporated and smooth.
- Gradually add the dry flour mixture to the wet ingredients, mixing just until the dough comes together and no dry flour patches remain.
- Divide the dough into two even portions. Stir the cocoa powder into one half until thoroughly blended and a deep brown dough forms.
- Roll each dough between sheets of parchment to about 1/4 inch thickness.
- Carefully layer the chocolate sheet on top of the vanilla sheet, aligning the edges, then roll tightly into a log starting from one long side to create a spiral.
- Chill the wrapped log in the refrigerator for about 1 hour to firm the dough for easy slicing.
Baking
- Preheat the oven to 350°F (175°C) and line baking sheets with parchment.
- Unwrap and slice the chilled log into 1/4 inch rounds using a sharp knife, wiping crumbs between cuts if needed. Arrange rounds on the prepared baking sheet.
- Bake the slices for 10–12 minutes, or until the edges are lightly golden but centers are still pale. Let cool briefly on the sheet.
- Allow the cookies to cool completely, then dust with powdered sugar before serving.
Notes
For short-term storage, keep cookies in an airtight container at room temperature for up to 5 days. Chilling helps create clean spiral shapes, and chilling the dough log ensures easier slicing. These cookies can also be frozen for up to 3 months.
