Popcorn "Cake"

This is a nice, quick treat.  Watch your calories though, as this one is loaded with goodies like caramels, marshmallows, peanuts, butter and chocolate.  A wonderful, sweet concoction!  Enjoy!
-10 cups plain popped popcorn
-16 oz mini marshmallows
-20 caramels (I used Kraft, for reference)
-1/4 cup unsalted butter
-1 1/2 cups cocktail peanuts
-1 cup milk chocolate M&Ms
Coat a bundt cake pan with butter flavored cooking spray (don't forget up the sides! :) ).  Set aside.
Place the popcorn in a large bowl.
Melt the marshmallows, caramels and butter.  Mix very well, then pour over popcorn.  Stir.  Add the peanuts and give it a really good stir.  Add the chocolate and mix well.  Pour into prepared pan and press down.
Let it cool completely, then cut, using a serrated knife.  Enjoy!