Spread half of the peanut butter mixture over the cookie layer.
Add another full layer of cookies on top.
Step 5: Second Layer
Spread the remaining peanut butter mixture evenly over the cookies.
Top with a final layer of cookies.
Step 6: Add the Chocolate Topping
Warm the chocolate frosting (uncovered) in the microwave for about 45–60 seconds, until pourable.
Pour evenly over the top layer and spread smoothly.
Step 7: Chill
Cover and refrigerate for at least 12 hours, preferably overnight.
This step is key—the cookies soften and turn into a cake-like texture.
