Chocolate Heart Attack Surprise

1 C butter
2 C sugar
1 C flour
1/2 tsp salt
2 C chocolate chips
3 C rice krispies
6 T cocoa
4 eggs
2 tsp vanilla
1 jar marshmallow cream
1C peanut butter

Preheat oven to 350. Grease a 9 x 13 pan.  Cream together butter, sugar, and eggs.  Add cocoa, flour, vanilla, and salt and mix well.  Pour into pan.  Bake 35 minutes.  Cool slightly.  Spread marshmallow cream over the top of warm brownies.  Then in a large bowl, melt chocolate chips and peanut butter.  Add Rice Krispies.  Spread over the top of the bars. Refrigerate.