01 - Preheat oven to 350°F. Line baking sheets with parchment paper for easy cleanup and to prevent sticking.
02 - In a medium bowl, whisk together flour, baking powder, and salt until evenly blended.
03 - Using a mortar and pestle or spice grinder, lightly crush the dried lavender with lemon zest to release essential oils. Set aside.
04 - In a large bowl, beat softened butter and granulated sugar until light and fluffy, approximately 2 minutes.
05 - Beat in the egg, vanilla extract, and fresh lemon juice until the mixture is smooth and well combined.
06 - Mix in the crushed lavender and lemon zest mixture, ensuring even distribution throughout the batter.
07 - Gradually add the dry ingredients to the wet mixture, mixing until just incorporated. Do not overmix.
08 - Scoop tablespoon-sized balls of dough onto prepared baking sheets, spacing 2 inches apart to allow for spreading.
09 - Bake for 10 to 12 minutes, or until edges are lightly golden. Centers should remain slightly soft.
10 - Let cookies cool on the baking sheet for 2 minutes before transferring to a wire rack to cool completely.