# Step-by-Step Guide:
01 - Set oven temperature to 325°F. Line a baking sheet with parchment paper.
02 - In a large bowl, beat the softened butter and powdered sugar together until light and fluffy.
03 - Gradually mix in the all-purpose flour until a soft, crumbly dough forms.
04 - Turn dough onto a lightly floured surface and gently knead until it just comes together.
05 - Roll dough to approximately ½ inch thickness. Cut into desired shapes such as rectangles or rounds.
06 - Place cookie shapes on the prepared baking sheet with 1 inch spacing. Prick each cookie several times with a fork to achieve classic shortbread texture.
07 - Bake for 18 to 22 minutes until edges begin to turn golden but do not brown.
08 - Let cookies cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.