Stephanie’s Shortbread

1. Whip the butter until pale and fluffy.
2. Add sugar and whisk again until cloud-like.
3. Add flour + salt and mix just until it comes together.
4. Press into an 8x8 glass pan lined with parchment.
5. Bake at 300°F for 35–40 minutes, until a very pale golden color.
6. Cut into 16 squares while warm (the secret to perfect edges).