Step 1: Prepare the Dry Ingredients

In a medium bowl, whisk together the flour, baking powder, salt, and ground lavender. Sifting these ingredients helps ensure a smooth and even dough.

Step 2: Cream the Butter and Sugar

In a large mixing bowl, use an electric mixer to cream the softened butter and granulated sugar until light and fluffy. This step is crucial for achieving a soft texture.

Step 3: Add Wet Ingredients

Beat in the egg, followed by lemon zest, lemon juice, and vanilla extract. Mix until well combined.

Step 4: Incorporate the Dry Ingredients

Gradually add the dry ingredient mixture to the wet ingredients. Mix until just combined. Avoid overmixing to keep the cookies tender.

Step 5: Chill the Dough

Wrap the dough in plastic wrap and refrigerate for at least 30 minutes. This helps enhance the flavor and makes rolling easier.

Step 6: Roll and Cut the Dough

Preheat the oven to 350°F (175°C). Line a baking sheet with parchment paper. Roll out the dough on a floured surface to about 1/4-inch thickness. Use a cookie cutter to shape the cookies.

Step 7: Bake the Cookies

Place the cookies on the prepared baking sheet and bake for 10-12 minutes or until the edges turn golden brown.

Step 8: Cool and Glaze

Allow the cookies to cool on a wire rack. If using glaze, whisk together powdered sugar and lemon juice, then drizzle over the cookies. Garnish with dried lavender if desired.