01 -
Preheat the oven to 350°F. Arrange the refrigerated pie crust in a 9-inch deep-dish pie plate, pressing it firmly into the edges and crimping or scalloping the rim.
02 -
In a medium mixing bowl, combine the brownie mix, vegetable oil, water, vanilla extract, egg, and peanut butter chips until just blended. For brownie crumb garnish (if desired), reserve 2 tablespoons of the mixture.
03 -
Spread the remaining brownie batter evenly in the prepared pie crust. Bake for 30 to 35 minutes, until the top and edges are cracked and a toothpick inserted near the center comes out clean. Cool completely on a wire rack.
04 -
Flatten the reserved 2 tablespoons of brownie batter into a small disk on a greased baking sheet. Bake for 7 to 8 minutes, or until set. Cool and crumble for garnish.
05 -
In a large bowl, beat the softened cream cheese, creamy peanut butter, powdered sugar, and half of the whipped topping until smooth and fully combined. Gently fold in the remaining whipped topping.
06 -
Spread the prepared peanut butter filling over the completely cooled brownie layer. Sprinkle the top with chocolate jimmies, chocolate chips, peanut butter chips, or brownie crumbs as desired.
07 -
Refrigerate until set. Cut into slices and serve chilled. Store covered in the refrigerator for up to one week.