01 - Preheat the oven to 350°F and line two baking sheets with parchment paper.
02 - In a large mixing bowl, beat the softened butter and sugar together until pale and fluffy, about 2-3 minutes.
03 - Beat in the egg, lemon juice, lemon zest, and vanilla extract until fully combined.
04 - In a separate bowl, whisk together the all-purpose flour, baking soda, and salt.
05 - Gradually add the dry ingredients into the wet mixture, mixing just until incorporated. Be careful not to overmix.
06 - Scoop heaping tablespoons of dough. If desired, roll each ball in powdered sugar for a soft coated finish.
07 - Place dough balls 2 inches apart on the prepared baking sheets to allow for spreading.
08 - Bake for 9-11 minutes, or until the edges are just set and the centers appear slightly underbaked.
09 - Let the cookies rest on the baking sheet for 5 minutes, then transfer to a wire cooling rack to cool completely.