Preheat your oven to 350°F (175°C).
In a large bowl, cream together the softened butter and sugar until light and fluffy.
Beat in the eggs one at a time, mixing well after each addition.
Stir in the lemon zest and juice until well combined.
In a separate bowl, whisk together the flour, baking powder, and salt.
Gradually add the dry ingredients to the wet mixture, mixing until just combined.
Scoop tablespoon-sized portions of dough onto a baking sheet lined with parchment paper.
Flatten each cookie slightly with the back of a spoon or your hand.
Bake in the preheated oven for 12-15 minutes, or until the edges are lightly golden.
Allow cookies to cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.