Combine butter, dates and brown sugar (or Splenda) in saucepan. Cook over LOW heat for 5 minutes, stirring constantly.
Remove and add vanilla, nuts, coconut and rice cereal. Stir until well blended.
Press down hard into a buttered 9 x 9 inch pan. Sprinkle top with additional coconut and lightly press inches (or use optional method of cutting and roll into logs and roll in powdered sugar without coconut).