Prepare the chocolate cake:
Bake the chocolate cake according to the instructions on the box (or your homemade recipe). Let the cake cool completely. Once cooled, cut the cake into bite-sized cubes and set aside.

Make the peanut butter layer:
In a large mixing bowl, beat the peanut butter and softened cream cheese together until smooth and well-combined. Gradually add the powdered sugar and mix until fully incorporated. In a separate bowl, whip the heavy cream until stiff peaks form, then fold the whipped cream into the peanut butter mixture. This will create a light and fluffy peanut butter filling.

Make the whipped cream layer:
In a separate bowl, beat the heavy cream with powdered sugar and vanilla extract until stiff peaks form, creating a fluffy whipped cream. Set aside.

Assemble the trifle:
In a large glass trifle dish or individual dessert cups, start by layering the chocolate cake cubes on the bottom. Then, add a layer of the peanut butter mixture, smoothing it out with a spatula. Next, add a layer of whipped cream. Repeat the layers until you run out of ingredients, finishing with a layer of whipped cream on top.

Add the topping:
Sprinkle the chopped Reese’s peanut butter cups and mini chocolate chips (if using) over the top layer of whipped cream.

Chill:
Refrigerate the trifle for at least 3 hours, or overnight if possible, to allow the flavors to meld and the dessert to firm up.

Serve:
Serve the Reese’s Chocolate Peanut Butter Trifle chilled and enjoy the rich layers of chocolate, peanut butter, and whipped cream!