Make the Dough:

• In a large bowl, beat the softened butter and powdered sugar until light and fluffy. Optionally, mix in the vanilla extract.
• Combine flour, cornstarch, and salt in a separate bowl. Gradually add this dry mixture to the butter mixture, mixing until a soft dough forms.

2. Shape the Cookies:

• Divide the dough into two portions. Shape each portion into a log approximately 2 inches thick.
• Wrap each log in plastic wrap and refrigerate for at least 1 hour to make slicing easier and prevent spreading during baking.

3. Bake the Cookies:

• Preheat the oven to 325°F (165°C) and line a baking sheet with parchment paper.
• Slice the chilled dough into 1/4-inch-thick rounds and place them on the prepared baking sheet.
• Bake for 12–15 minutes, or until the edges turn golden. Avoid overbaking to retain a soft, melt-in-your-mouth texture.

4. Cool and Enjoy:

• Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.
• Serve with tea or coffee for a delightful treat!

Optional Enhancements:

• Dust the cookies with powdered sugar for extra sweetness.
• Dip one side in melted chocolate for an added indulgence once the cookies have cooled.

Enjoy your homemade shortbread cookies! 😊