Preheat your oven to 350°F and line 2 large baking sheets with parchment paper. Set aside.
In the bowl of a stand mixer fitted with the paddle attachment, cream the butter and sugar together on medium speed until light and fluffy, about 2 minutes.
½ cup unsalted butter, 1 cup granulated sugar
Scrape down the sides of the bowl and add the egg and vanilla extract. Mix to combine.
1 large egg, 1 teaspoon pure vanilla extract
Add the flour and baking soda and mix just until all of the dry ingredients are incorporated. You don’t want to overmix!
1½ cups all-purpose flour, ¾ teaspoon baking soda
Add the white chocolate chips and macadamia nuts and fold them into the cookie dough gently.
½ cup white chocolate chips, ½ cup chopped macadamia nuts
Scoop the dough into 2-tablespoon-sized balls and place them at least 2 inches apart on the prepared baking sheets.
Bake for 10-12 minutes, or until the edges are starting to turn golden brown.
Allow the cookies to cool completely before serving.