01 -
Set oven to 350°F and line a baking sheet with parchment paper.
02 -
In a large bowl, beat softened butter with powdered sugar using a mixer until pale and fluffy.
03 -
Mix in lemon juice, lemon zest, and vanilla extract until combined.
04 -
Whisk together flour, cornstarch, and salt in a separate bowl. Gradually add to the wet ingredients, mixing until a soft dough forms.
05 -
Scoop tablespoon-sized portions of dough, form into balls, and arrange on the prepared baking sheet. Slightly flatten each with fingertips.
06 -
Bake for 10 to 12 minutes, until cookies are just set and still pale. Remove from the oven and cool on the baking sheet for 5 minutes before transferring to a wire rack.
07 -
In a small bowl, whisk powdered sugar with lemon juice until smooth. Add lemon zest for extra flavor if desired.
08 -
Once cooled, drizzle or dip each cookie with the lemon glaze. Let set for 15 minutes before serving.