Step 1: In a large bowl, cream together the softened butter and sugar until light and fluffy.
Step 2: Stir in the lemon zest, vanilla extract, and dried lavender until evenly distributed.
Step 3: Gradually add the flour and salt, mixing until a cohesive dough forms.
Step 4: Shape the dough into a log or disk, wrap in plastic, and chill in the refrigerator for at least 1 hour.
Step 5: Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
Step 6: Roll out the dough to 1/4 inch thickness and cut into desired shapes.
Step 7: Bake for 10-12 minutes or until the edges are just barely golden.
Step 8: Allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack.