3. Create the Chocolate Ganache:
- In a small saucepan or microwave-safe bowl, heat the heavy cream until it just begins to steam—avoid boiling to prevent separation. If microwaving, heat in 15-second intervals, checking and stirring in between.
- Pour the hot cream over the chocolate chips in a medium bowl. Let the mixture sit undisturbed for 2 minutes to allow the chocolate to soften fully.
- Stir gently until the mixture becomes smooth and glossy. If needed, microwave for an additional 5–10 seconds to fully melt any remaining chocolate bits. Let the ganache cool slightly for a few minutes so it doesn’t melt the peanut butter layer when added.
- Pour the ganache over the peanut butter layer, spreading it evenly to cover the entire surface. A gentle tilt of the pan helps distribute it naturally.
4. Chill and Serve:
- Refrigerate the assembled dessert for at least 4 hours, or preferably overnight, to allow all the layers to firm up and flavors to meld.
- Before serving, optionally sprinkle chopped peanuts or Reese’s pieces over the ganache for added texture and visual appeal.
- Slice into squares using a sharp knife. For clean cuts, wipe the blade between slices. Serve chilled.
Storage Tips
Store leftovers covered in the refrigerator for up to 5 days. This dessert holds its shape well when chilled. Avoid freezing, as the texture of the mousse and ganache may change.
