01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - Whisk together flour, baking soda, baking powder, and fine sea salt in a medium bowl until well blended.
03 - Beat butter, honey, and brown sugar with an electric mixer until creamy and light, approximately 2 to 3 minutes.
04 - Add egg and vanilla extract to the butter mixture. Beat until fully incorporated and smooth.
05 - Gradually add dry ingredients to wet ingredients, mixing until just combined. Do not overmix.
06 - Gently fold chopped pistachios into the dough until evenly distributed.
07 - Scoop tablespoon-sized portions onto prepared baking sheets, spacing about 2 inches apart.
08 - Lightly flatten each dough ball and sprinkle with a pinch of flaky sea salt.
09 - Bake for 10 to 12 minutes until edges are lightly golden but centers remain soft.
10 - Let cookies cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.