Preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper or silicone baking mats.
In a medium bowl, whisk together the flour, baking soda, and salt. Set aside.
In a large bowl, cream together the softened butter and 1½ cups granulated sugar until light and fluffy.
Beat in the egg, followed by the vanilla extract, lemon zest, and lemon juice. Mix until well incorporated.
Gradually add the dry ingredients to the wet mixture, mixing until just combined.
Place the ¼ cup of granulated sugar in a shallow dish.
Roll the dough into 1-inch balls, and then roll them in the sugar coating until fully coated.
Place the coated dough balls on the prepared baking sheets, spacing them about 2-3 inches apart. Using the bottom of a glass or your fingers, gently flatten the dough balls slightly.
Bake in the preheated oven for 10-12 minutes or until the edges are lightly golden but the centers are still soft and slightly puffy.
Allow cookies to cool on the baking sheets for 5 minutes before transferring them to wire racks to cool completely.