1. – Preheat your oven to 375°F (190°C) and line a baking sheet with parchment paper.

2. – In a medium bowl, whisk together the flour, baking powder, and salt.

3. – In a large bowl, cream the softened butter and sugar together until light and fluffy.

4. – Beat in the egg and vanilla extract until well combined.

5. – Gradually add the dry ingredients to the wet ingredients, mixing just until a dough forms.

6. – On a lightly floured surface, roll the dough out into a large rectangle, about 1/4-inch thick.

7. – Sprinkle the cinnamon evenly over the dough, then roll it up tightly, starting from the long side.

8. – Slice the rolled-up dough into 1-inch thick slices and place them on the prepared baking sheet, spacing them about 2 inches apart.

9. – Bake for 12-15 minutes, or until the cookies are lightly golden on the edges.

10. – Remove from the oven and let cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.