Step 1

Preheat oven to 350° and grease a 9x13-inch pan with cooking spray.

Step 2

Prepare the cake batter according to package directions.

Step 3

Sprinkle the coconut and macadamia nuts onto the bottom of the prepared pan.

Step 4

Spread your cake batter over the top. Set aside.

Step 5

Meanwhile, in a large bowl, combine the cream cheese, butter, confectioners' sugar, vanilla, and salt.

Step 6

Beat with a mixer until combined. Dollop the mixture over the cake and use a knife to marble.

Step 7

Sprinkle white chocolate chips on top and bake for about 55-60 minutes, or until the center is set.

Step 8

Serve warm with ice cream, if desired.