Oven to 350 degrees. Place butter in 9x13; heat in oven until melted. Remove from oven. Stir together graham crumbs, cocoa and sugar; sprinkle over melted butter. Stir mixture until evenly coated; press evenly with spatula onto bottom of pan. Pour sweetened condensed milk evenly over crumb mixture. Sprinkle with chocolate pieces and toffee bits. Sprinkle nuts and coconut on top;; press down firmly. Bake 25-30 minutes or until lightly browned. Cool completely in pan on wire rack. Cover with foil; let stand at room temperature several hours. cut into bars.
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