1️⃣ Prepare the Dough:

1. In a mixing bowl, cream the softened butter and granulated sugar until light and fluffy.
2. Mix in the egg and vanilla extract until combined.
3. In a separate bowl, whisk together the flour, baking powder, and salt. Gradually add the dry ingredients to the wet ingredients, mixing until a soft dough forms.

2️⃣ Roll Out the Dough:

• On a floured surface, roll the dough into a rectangle about ¼-inch thick.

3️⃣ Add the Filling:

1. Brush the rolled-out dough with melted butter.
2. Mix the brown sugar and cinnamon, then sprinkle evenly over the buttered dough.

4️⃣ Roll and Chill:

1. Roll the dough tightly into a log.
2. Wrap the log in plastic wrap and refrigerate for at least 1 hour, or until firm.

5️⃣ Slice and Bake:

1. Preheat the oven to 350°F (175°C) and line a baking sheet with parchment paper.
2. Slice the chilled dough into ¼-inch thick rounds and place on the baking sheet, spacing 2 inches apart.
3. Bake for 10–12 minutes, or until the edges are lightly golden. Cool the cookies on a wire rack.

6️⃣ Prepare the Glaze:

• In a small bowl, mix powdered sugar, milk, and vanilla extract until smooth. Drizzle the glaze over cooled cookies.