Preheat the Oven: Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.
Mix the Dry Ingredients: In a medium bowl, whisk together the flour, baking soda, and salt. Set aside.
Cream the Butter and Sugars: In a large bowl, beat the softened butter, granulated sugar, and brown sugar until light and fluffy, about 3 minutes.
Add the Wet Ingredients: Add the eggs, one at a time, and vanilla extract. Mix until smooth.
Combine Dry and Wet Ingredients: Gradually add the dry ingredients into the wet ingredients, mixing until just combined.
Fold in White Chocolate and Macadamia Nuts: Gently fold in the white chocolate chips and chopped macadamia nuts.
Form the Cookies: Use a cookie scoop or spoon to scoop tablespoon-sized portions of dough and place them onto the prepared baking sheet, spacing about 2 inches apart.
Bake: Bake for 10-12 minutes, or until the edges are lightly golden but the center is still soft. Let the cookies cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely.