Combine first 4 ingredients; set aside.
Stir together butter and next 3 ingredients in a large bowl; add flour mixture, stirring until smooth. Stir in chocolate morsels, pecans, and coconut. (Dough will look crumbly.)
Press dough evenly into a lightly greased 15" x 10" jelly-roll pan, pressing almost to edges.
Bake at 350° for 19 minutes or until lightly browned and cookie "slab" seems crisp. Cool completely in pan. Break cookie into pieces.
Note: You can toast pecan pieces and coconut in the same pan at 350° for 8 minutes.