Combine flour, baking soda, and salt in medium bowl. Mix well.

In large bowl with electric mixer, beat together butter, brown sugar, and white sugar, beating until well combined.

Add egg and egg yolk, and vanilla, and beat until well combined.

Add flour mixture and beat until combined.

Stir in white chocolate chips, nuts, and coconut, until well combined.

Chill for 30 minutes.

Preheat oven to 350 degrees F.

Form cookies into approximately tablespoon-sized cookie balls and place 2" apart on baking sheet lined with parchment paper.

Bake in preheated oven for 9-11 minutes, until edges are slightly golden brown.

Cool on cookie sheet for 15minutes then transfer to cooling rack and cool completely.