These rich No Bake Chocolate Peanut Butter Bars have a cookie crust, crunchy chocolate cereal layer, fluffy peanut butter mousse, and silky chocolate ganache. A decadent make-ahead dessert for parties, holidays, or chocolate peanut butter cravings.
No-Bake Chocolate Peanut Butter Bars
These No-Bake Chocolate Peanut Butter Bars are layered, creamy, crunchy, chocolatey, and completely irresistible. They start with a buttery cookie crust, then a crunchy chocolate peanut butter cereal layer, then fluffy peanut butter mousse, and finally a smooth chocolate ganache on top.
Basically, this dessert is what happens when peanut butter and chocolate decide to be extra.
They are perfect for holidays, parties, potlucks, dessert tables, or anytime you want a make-ahead dessert that looks impressive but does not require turning on the oven.
Why You’ll Love These Bars
- No baking required: perfect for make-ahead entertaining.
- Four delicious layers: cookie crust, crunch, mousse, and ganache.
- Chocolate peanut butter flavor: rich, creamy, and always a crowd favorite.
- Great texture: crunchy bottom with a soft mousse center.
- Perfect for slicing: serve as bars or smaller party squares.
The Four Layers
These bars are all about contrast. The cookie crust gives the dessert structure, the cereal layer adds crunch, the peanut butter mousse makes it creamy, and the chocolate ganache gives it that glossy bakery-style finish.
Every bite has a little crunch, a little fluff, and a whole lot of chocolate peanut butter happiness.
Crunchy Chocolate Cereal Layer
The crunchy layer is inspired by the French pailleté feuilletine technique, where crisp cookie crumbs are mixed with chocolate and praline to add texture to desserts.
For this easier version, cereal, peanut butter, and melted chocolate create a crunchy layer that stays surprisingly crisp once chilled. No fancy pastry school required, thank goodness.
Peanut Butter Mousse
The peanut butter mousse layer is creamy, fluffy, and rich without feeling too heavy. Cream cheese gives it structure, peanut butter gives it flavor, powdered sugar adds sweetness, and whipped cream makes it light.
Make sure the mousse chills long enough before adding the ganache so the layers stay neat when sliced.
Chocolate Ganache Topping
The ganache topping is simple but makes these bars feel extra decadent. Hot cream melts the chocolate into a smooth glossy layer that spreads beautifully over the mousse.
Finish with chopped peanuts or a pinch of flaky salt if you want extra crunch and flavor.
Tips For Clean Slices
- Line the pan: parchment paper or foil makes removal easier.
- Chill fully: the mousse needs time to set.
- Use a sharp knife: wipe the blade between cuts.
- Freeze briefly: 15 minutes in the freezer helps with cleaner slices.
- Cut smaller squares: this dessert is rich, so small pieces work well.
Can I Make These Ahead?
Yes. These No-Bake Chocolate Peanut Butter Bars are perfect for making ahead because they need a chilling time. Prepare them the day before serving, then slice when ready.
How To Store
Store bars covered in the refrigerator for up to 5 days. Keep them chilled until serving so the mousse and ganache stay firm.
Can I Freeze Them?
Yes. Freeze sliced bars in an airtight container for up to 1 month. Thaw in the refrigerator before serving.
No-Bake Chocolate Peanut Butter Bars Recipe
I hope you try these No-Bake Chocolate Peanut Butter Bars at home. They are crunchy, creamy, chocolatey, rich, and perfect when you want a showstopper dessert without baking.
No Bake Chocolate Peanut Butter Bars
Ingredients
For Cookie Layer
- 6 oz graham crackers or digestive biscuits
- 4 tablespoons unsalted butter melted
For Crunchy Chocolate Layer
- 1 cup Honey Bunches of Oats or crispy cereal
- 1/2 cup creamy peanut butter
- 3 oz semi-sweet chocolate melted
For Peanut Butter Mousse
- 4 oz cream cheese softened
- 1/2 cup powdered sugar
- 1/2 cup creamy peanut butter
- 1 cup heavy whipping cream cold
For Chocolate Ganache
- 1 cup semi-sweet chocolate chips or chopped chocolate
- 1/2 cup heavy cream
Garnish
- Chopped peanuts optional
- Flaky sea salt optional
Instructions
Prepare Pan
- Line an 8x8-inch pan or loaf pan with parchment paper, leaving overhang for easy removal.
Cookie Crust
- Crush graham crackers into fine crumbs.
- Mix crumbs with melted butter until evenly combined.
- Press mixture firmly into bottom of pan. Refrigerate.
Crunchy Chocolate Layer
- Stir melted chocolate and peanut butter together until smooth.
- Fold in cereal.
- Spread over chilled crust and refrigerate.
Peanut Butter Mousse
- Beat cream cheese until smooth.
- Add powdered sugar and peanut butter. Beat until creamy.
- In separate bowl, whip heavy cream to stiff peaks.
- Fold whipped cream into peanut butter mixture gently until fluffy.
- Spread over cereal layer. Refrigerate 3 hours or until firm.
Ganache
- Heat heavy cream until hot but not boiling.
- Pour over chocolate. Let sit 1 minute. Stir until glossy and smooth.
- Spread ganache over mousse layer.
Finish
- Sprinkle chopped peanuts or flaky salt on top if desired.
- Refrigerate 30 minutes to set.
- Lift from pan and slice into 12 bars.
Notes
- Use regular creamy peanut butter for the best texture. Natural peanut butter can separate.
- Freeze bars for 15 minutes before slicing for cleaner cuts.
- Store refrigerated up to 5 days.
- Bars can be frozen for up to 1 month.
- Swap graham crackers for Oreos or vanilla wafers if desired.
Nutrition
More Chocolate Peanut Butter Desserts You May Like
Butterfinger Cake
Copycat Nutter Butter Cookies
This recipe looks good,I might have to try it.When you say to use a loaf pan,is that the same as a bread loaf pan?
Exactly Jon 🙂
Delicious!!! This is a top/favorite new dessert for me!
Thanks for the feedback Angie! so glad you liked it!