1 1/2 cup of graham cracker crumbs
2 1/2 cup of Icing sugar
1 cup Peanut butter
1 cup melted margarine
1 cup of chocolate chips
1/2 cup of peanut butter.
In a bowl mix:
1 1/2 cup of graham cracker crumbs
2 1/2 cup of Icing sugar
1 cup Peanut butter
1 cup melted margarine
Spread in a 9x13 pan. 
Then in a pot, melt:
1 cup of chocolate chips
1/2 cup of peanut butter. 
Pour on top of mixture and let sit. 
Cut into squares once set.