That's right. Double peanut butter! As in, the top is peanut butter too!
Except that it was a huge disappointment. The peanut better on top was made smooth so that it would set properly and tastes more like Reese's pieces than the delicious PB filling. I felt like the smooth PB also detracted from the filling, overwhelmed the flavor, and thus ruined the magic of peanut butter on peanut butter.