Chocolate Peanut Butter Pie

This was a cookie recipe but Willow was having a rough day so I knew I wouldn't have the time to keep switching cookies in and out of the oven.  Instead it went into a pie pan(sprayed with baking spray) and I baked it at 325 degrees for 20-30 minutes.  It was delicious!
This recipe is from allrecipes here and is for cookies.

1 cup butter
1 1/2 cups white sugar
2 eggs
2 teaspoons vanilla extract
2 cups all-purpose flour
2/3 cup unsweetened cocoa powder
3/4 teaspoon baking soda
1/2 teaspoon salt
2 cups peanut butter chips(I used half a bag of pb/chocolate chip mix)

Directions
Preheat oven to 350 degrees F (175 degrees C). Grease cookie sheets.
In a medium bowl, cream together the butter and sugar. Stir in the eggs and vanilla. Combine the flour, cocoa, baking soda and salt, stir into the creamed mixture. Finally, fold in the peanut butter chips. Drop cookies by heaping teaspoonfuls onto the prepared cookie sheets.
Bake for 8 to 10 minutes in the preheated oven, until set. Cool on wire racks.