01 - Preheat the oven to 350°F. Line two baking sheets with parchment paper and set aside.
02 - In a large mixing bowl, beat the softened butter and granulated sugar together using an electric mixer until the mixture is pale, light, and fluffy, about 2-3 minutes.
03 - Add the egg, lemon juice, lemon zest, and vanilla extract to the butter mixture. Beat until fully combined and smooth.
04 - In a separate bowl, whisk together the all-purpose flour, baking soda, and salt until evenly distributed.
05 - Gradually add the dry ingredient mixture into the wet ingredients, mixing on low speed just until the flour is incorporated. Stop mixing as soon as no dry streaks remain to keep the cookies tender.
06 - Scoop heaping tablespoons of dough and roll into balls. If desired, roll each ball in powdered sugar for a sweet, crackled finish.
07 - Place the dough balls on the prepared baking sheets, spacing them about 2 inches apart to allow for spreading.
08 - Bake for 9-11 minutes, or until the edges are just set and the centers still look slightly soft and underbaked. This ensures a chewy texture.
09 - Allow the cookies to rest on the baking sheet for 5 minutes, then transfer them to a wire cooling rack to cool completely before serving or storing.