01 - Preheat oven to 350°F and line a baking sheet with parchment paper.
02 - In a medium bowl, whisk together the flour, baking powder, baking soda, and salt. Set aside.
03 - In a large bowl, cream the softened butter and sugar together until light and fluffy.
04 - Beat in the egg and vanilla extract until well combined.
05 - Gradually add the dry ingredients to the wet mixture, mixing until just incorporated. Do not overmix.
06 - Gently fold in the dandelion petals using a spatula, distributing evenly throughout the dough.
07 - Drop rounded tablespoons of dough onto the prepared baking sheet, spacing them about 2 inches apart.
08 - Bake for 10 to 12 minutes until the edges are lightly golden.
09 - Let the cookies cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.