Peanut Butter Chocolate Candy Cookies

1 cup creamy peanut butter
2 sticks butter, melted
1 cup graham cracker crumbs
1 box  (16oz) confectioners sugar
2 cups (12 oz pkg) semi sweet chocolate chips melted

In a large bowl, combine the peanut butter, melted butter,
graham cracker crumbs and confectioners sugar; mix well with a
wooden spoon. Press the mixture into a well greased 10 x 15
rimmed cookie sheet. Pour the  melted chocolate evenly over the
top. Refrigerate for 15 minutes. Slice into squares, but leave
in pan. Refrigerate until well chilled. Serve cold.