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 evenly distributed.
03 - Beat butter, honey, granulated sugar, and brown sugar in a large bowl until light and creamy, approximately 2-3 minutes.
04 - Mix egg and vanilla extract into the butter mixture until fully incorporated.
05 - Gradually add dry ingredients to wet ingredients, mixing just until no dry streaks remain. Avoid overmixing.
06 - Gently fold chopped pistachios into the dough, reserving 2 tablespoons for topping.
07 - Drop tablespoonfuls of dough onto prepared baking sheets, spacing at least 2 inches apart to allow for spreading.
08 - Press reserved pistachios onto each dough ball and lightly flatten the tops with your hand or the back of a spoon.
09 - Bake for 11-13 minutes until edges are golden brown and centers appear set.
10 - Remove from oven and immediately sprinkle with flaky sea salt. Let cookies rest on baking sheets for 5 minutes before transferring to a wire rack to cool completely.