Preheat oven to 350 degrees F. Grease an 8 inch square pan or line with foil and grease foil.
Stir together flour, salt and cocoa powder. Set aside.
In large mixing bowl, using an electric mixer, beat eggs for 30 seconds. Add sugar gradually, beating until fluffy, then stir in vanilla and cooled melted butter.
Add flour and stir until blended, then stir in half of the Reese's mix.
Spread evenly in pan and sprinkle remaining Reese's mix on top. Scatter salted peanuts over baking mix. If there's any more candy in the house, chop it up and put that on too.
Bake at 350° F about 30 minutes or until wooden pick inserted near center comes out clean.
Let cool completely in pan, then lift from pan and cut into squares.
Notes
I had some Reese's baking chips so instead of using a full bag of the special Reese's cups and candies I incorporated about ½ cup of regular Reese's baking chips.