Step 1

Preheat the oven to 350, and line a baking sheet with parchment paper.

Step 2

In the medium bowl, add the softened butter, brown sugar, granulated sugar, and vanilla extract. Beat until light and fluffy, about 40 seconds.

Step 3

Next, add the egg yolk and beat until combined.

Step 4

Finally, sprinkle the flour, baking soda and salt evenly over the surface, and beat to combine everything.

Step 5

Stir in the macadamia nuts and white chocolate chips by hand.

Step 6

Divide the dough equally into 6 cookies (about 46 grams each), and space evenly on a baking sheet.

Step 7

Bake for 9-11 minutes, until the cookies are light golden brown on the edges and the surface begins to crack.

Step 8

Let cool completely, and store in an air-tight container at room temperature for up to 2 days (if they last that long).