Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

In a mixing bowl, whisk together the flour, baking soda, and salt until well combined.

In another bowl, cream the softened butter and granulated sugar together until light and fluffy.

Add the egg, lemon zest, lemon juice, and vanilla extract to the butter mixture and mix until smooth.

Gradually add the dry ingredients to the wet ingredients, mixing until just combined.

Using a cookie scoop, drop dough onto the prepared baking sheet, spacing them about 2 inches apart.

Bake in the preheated oven for 10-12 minutes, or until the edges are lightly golden.

Allow the cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack. Dust with powdered sugar before serving.