01 - Preheat the oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together flour, baking powder, and salt until well combined.
03 - In a small bowl, combine lemon zest and dried lavender. Rub together gently with fingertips to release essential oils and distribute flavors.
04 - Beat softened butter and granulated sugar in a large bowl until light and fluffy, approximately 2-3 minutes.
05 - Add egg, vanilla extract, and lemon juice to the butter mixture. Beat until fully incorporated and smooth.
06 - Stir in the lemon zest and lavender mixture until evenly distributed throughout the batter.
07 - Gradually add dry ingredients to wet ingredients, mixing until just combined. Take care not to overmix.
08 - Drop tablespoon-sized dough balls onto prepared baking sheets, leaving 2 inches of space between each cookie.
09 - Bake for 10-12 minutes until edges are lightly golden. Centers should still appear slightly soft.
10 - Let cookies rest on baking sheets for 5 minutes before transferring to a wire rack to cool completely.