Cookie Preparation

• Whisk the flour, baking powder, and salt together in a medium bowl. Set aside.
• In a large bowl, beat the butter and sugar together on high speed until completely smooth and creamy, about 2 minutes. Add the egg and vanilla and beat on high speed until combined, about 1 minute.
• Add the dry ingredients to the wet ingredients and mix on low until combined. The dough will be a bit soft.
• Divide the dough into 2 equal parts. Roll each portion into a rectangle (about 9×7 inches) onto a floured surface to about ¼″ thickness.
• Spread 1 tablespoon of melted butter onto each rectangle. Mix the granulated sugar and cinnamon, then sprinkle evenly over each.
• Tightly roll up each rectangle into a 9-inch log and chill the logs for at least 2 hours.
• Preheat the oven to 350°F (177°C). Line a large baking sheet with parchment paper.
• Remove dough logs from the refrigerator, cut into ½ inch slices, and place slices onto baking sheets about 2 inches apart.
• Bake for 10-11 minutes until lightly browned on the sides. Allow to cool on the baking sheet for 5 minutes, then transfer to a wire rack.
• Whisk all the icing ingredients together and drizzle over cookies.