Toast coconut. Combine first five ingredients in large bowl.
In another large bowl, place marshmallows and butter. Microwave on high for 1 minute and stir. Microwave for another minute. Stir. It should be melted and well combined at this point, if not then microwave at short intervals until melted and combined.
Add dry ingredients and stir until blended, working fast. Place in buttered 9x13-inch pan and pat down into pan. Waxed paper or buttered hands are helpful in pressing down into pan. Cool.
Cut into either 2-inch squares or 1x2-inch bars. Wrap individual bars in plastic wrap and store until ready to enjoy! These travel well.