2 cups + 2 Tablespoons all-purpose flour

1 teaspoon cornstarch

1 teaspoon baking soda

3/4 cup salted butter, melted + slightly cooled

3/4 cup packed light or dark brown sugar

3/4 cup granulated sugar

1 large egg + 1 egg yolk, at room temperature

1 and 1/2 teaspoons pure vanilla extract

1 heaping cup white chocolate chips

1 cup roughly chopped macadamia nuts