Instructions

Preheat the oven to 350ºF. Line a baking sheet with parchment paper. Set it aside.
In a large bowl, whisk together the flour, baking powder, and salt. Set it aside.
In another large bowl, using an electric hand mixer or stand mixer, cream the butter until it is light and fluffy. Add the brown sugar and granulated sugar and mix until smooth. Add the egg and vanilla extract. Mix until everything is well incorporated. Add the flour mixture to the bowl and mix until a dough forms. Fold in the white chocolate chips and macadamia nuts.
Scoop the dough onto the prepared baking sheet. Round the dough into balls and flatten them slightly into a disc. Bake the cookies until they are lightly golden, about 8 to 10 minutes.
Allow the cookies to cool slightly before enjoying. Store in an airtight container for up to 5 days.