1

Preheat oven to 350 degrees F. Grease jelly roll pan.

2

In a large mixing bowl, cream butter and sugar. Add eggs and vanilla; beat with electric mixer until light and fluffy.

3

Combine flour, baking powder, salt and cocoa, and add to butter mixture.

4

Spread in prepared pan, and bake 15-18 minutes.

5

Sprinkle marshmallows evenly over first layer and return to the oven for 2-3 minutes. Using a knife dipped in water, spread melted marshmallows evenly over the first layer. Let cool.

6

For the topping, combine chips, butter and peanut butter in a small saucepan. Cook over low heat, stirring occasionally, until melted and well-blended. Remove from heat and stir in Rice Krispies. Spread evenly over bars.

7

Chill until firm, and cut into bars.