In a small saucepan, melt the butter and 1 cup of peanut butter.
Place powdered sugar and graham cracker crumbs into a bowl. Add in the melted butter and peanut butter mixture. Mix well!
Spread the mixture evenly in a 9" x 13" pan.
In a small saucepan, melt the chocolate and 1/4 cup of peanut butter on a medium-low heat. Make sure to constantly stir in order to avoid burning the chocolate.
Spread the chocolate mixture evenly over the graham cracker mixture.