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 until pale, light, and fluffy, approximately 2–3 minutes with an electric mixer.
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 incorporated. Avoid overmixing 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 coated 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 to 11 minutes, or until the edges are just set and the centers still appear slightly underbaked. This ensures a soft, chewy texture.
09 - Allow the cookies to rest on the baking sheets for 5 minutes, then transfer to a wire cooling rack to cool completely before serving or storing.