Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.
In a mixing bowl, whisk together the flour, baking soda, and salt. Set aside.
In another bowl, mix the melted butter, brown sugar, and granulated sugar until well combined. Add the vanilla extract and eggs, and mix until smooth.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Fold in the white chocolate chips and chopped macadamia nuts.
Drop spoonfuls of dough onto the prepared baking sheet, spacing them about 2 inches apart.
Bake for 10-12 minutes, or until the edges are lightly golden. Let the cookies cool on the baking sheet for a few minutes before transferring them to a cooling rack.
Notes:
Store cookies in an airtight container at room temperature for up to a week.