01 -
Preheat oven to 350°F (175°C). Line two baking sheets with parchment paper.
02 -
Beat butter and powdered sugar until fluffy. Add lemon zest and juice. In separate bowl, whisk flour, cornstarch, and salt, then gradually add to butter mixture.
03 -
Roll dough into 1-tablespoon balls, place 2 inches apart on baking sheets. Flatten slightly with palm or glass.
04 -
Bake 10-12 minutes until edges just begin to turn golden. Cool 5 minutes on sheets, then transfer to wire rack.
05 -
Whisk powdered sugar, lemon juice, and zest until smooth. Adjust consistency if needed.
06 -
When cookies are completely cool, spoon glaze over tops. Sprinkle with additional lemon zest while glaze is still wet.