Start by melting the butter in a saucepan over medium heat. Keep stirring as it begins to foam and turn golden brown. This step adds a deep, nutty flavor that makes these cookies stand out.
Once the butter turns amber in color, remove it from heat. Let it cool for about 20–30 minutes so it doesn’t cook the egg when mixed later.
Add the cooled butter into a mixing bowl with both sugars. Mix until smooth, then add honey, egg, vanilla, sea salt, and baking soda. Blend everything until well combined.
Slowly add flour into the mixture and mix until just combined. Avoid overmixing, as it can make the cookies tough instead of soft.
Gently stir in chopped pistachios and white chocolate chips. Make sure they are evenly distributed throughout the dough.
Using a cookie scoop, drop dough balls onto a lined baking sheet. Keep enough space between each cookie to allow spreading.
Bake in a preheated oven at 350°F (175°C) for about 8 minutes. The edges should be lightly golden while the centers remain soft.
Let the cookies rest on the baking sheet for a few minutes before transferring to a wire rack. Sprinkle with flaky sea salt for an extra flavor boost.