Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper.

In a large mixing bowl, beat together softened unsalted butter and granulated sugar until light and fluffy, about 3-5 minutes.

Mix in one egg yolk and vanilla extract until fully combined.

In another bowl, whisk together sifted flour, baking powder, and salt, then gradually add to the butter mixture until just combined.

Using a cookie press or piping bag, shape cookies on the baking sheets, spacing them out for spreading.

Bake for 8-10 minutes until edges are lightly golden. Cool on sheets for a few minutes before transferring to wire racks.

Optional: Dust with powdered sugar before serving.