Preparation Steps

• In a medium bowl, whisk together the all-purpose flour, baking powder, and salt until well combined.
• In a large mixing bowl, beat the softened unsalted butter and granulated sugar together until creamy and fluffy, about 2-3 minutes. Add in the room temperature egg and vanilla extract, mixing until smooth.
• Gradually add the dry ingredients to the wet mixture, stirring gently until just incorporated.
• Divide the dough into two portions and roll each into a 9x7 inch rectangle on a lightly floured surface. Spread melted butter over the surface, then sprinkle generously with the cinnamon-sugar mixture.
• Carefully roll each rectangle tightly into logs, starting from one long side. Wrap the logs in plastic wrap, and refrigerate for at least 2 hours.
• Preheat your oven to 350°F (177°C). Once chilled, slice each log into 1/2 inch rounds and space them on lined baking sheets. Bake for about 10-11 minutes.
• Allow the cookies to cool on the baking sheet for a few minutes before transferring them to a wire rack. Drizzle with the prepared icing once slightly cooled.