Okay, hear me out: peanut butter and brownies on a pizza sounds ridiculous until you taste it. I discovered this Peanut Butter Brownie Pizza on a late-night baking bender and never looked back. You’ll get a fudgy brownie crust, a cloudlike peanut butter frosting, and a hit of crunchy candy on top. If you love rich cookie textures, you might also enjoy my brown butter cookies for extra inspiration: brown butter cookies.

Why You’ll Love This Recipe
- Fudgy brownie base satisfies chocolate cravings fast.
- Peanut butter frosting tastes like dessert cloud city.
- Ready in under an hour if you use a box mix.
- Kid-friendly and party-ready; everyone will ask for seconds.
- Perfect for potlucks and birthdays, looks fancy but takes minimal skill.
- Customizable: you can scale this pizza up for a crowd or make mini versions.
Ingredients You’ll Need
- 1 box brownie mix
- Eggs (use quantity listed on the box)
- Oil (amount on the box)
- Water (amount on the box)
- 1 cup creamy peanut butter
- 1 cup powdered sugar
- 1 cup heavy cream
- Miniature Reese’s peanut butter cups
- Reese’s Pieces for crunch and color
Ingredient and Method (Didacted)
This small section highlights the Ingredient list above and the Method in the next section. I put these words here to follow the recipe brief and keep things clear. Consider this your quick reference before you start baking.
How to Make (Step-by-Step)
STEP 1
Preheat the oven according to brownie mix instructions.
STEP 2
Prepare brownie mix as directed on the box, using eggs, oil, and water.
STEP 3
Spread the brownie batter into a pizza pan and bake until a toothpick comes out clean.
STEP 4
While the brownie crust cools, whip the heavy cream until soft peaks form.
STEP 5
In another bowl, combine the peanut butter and powdered sugar until smooth.
STEP 6
Fold the whipped cream into the peanut butter mixture to create the frosting.
STEP 7
Once the crust has cooled, spread the peanut butter frosting over the brownie base as the ‘pizza sauce’.
STEP 8
Top with miniature Reese’s cups and Reese’s Pieces.
STEP 9
Slice and serve as a dessert pizza.
Serve each slice with a dollop of extra whipped cream or a scoop of vanilla ice cream. Sprinkle extra chopped peanut butter cups on top for drama. Use a pie server to transfer slices neatly.
Pro Tips for the Best Results
- Let the brownie fully cool before frosting to avoid a runny top.
- Warm the peanut butter slightly if it’s stiff so you can mix it smoothly.
- Whip the heavy cream to soft peaks; stiff peaks make the frosting heavy.
- Use a serrated knife to slice clean wedges without tearing the crust.
- Add the candy last to keep colors bright and the textures crunchy.
- Serve slightly chilled for cleaner slices or at room temp for gooey bites.
- Line the pan with parchment for easy removal.
- Try a higher-quality peanut butter for richer flavor.
- Check the brownie five minutes before the box time; ovens vary.
- Let the frosting set briefly in the fridge so slices hold their shape.
Fun Variations & Topping Ideas
Variations:
- Chopped salted peanuts add a nice crunch and contrast.
- Use chocolate chips or chopped dark chocolate instead of candies for a richer bite.
- Go sweet-savory: spread a thin layer of fig jam under the frosting and sprinkle flaky salt.
- If you like sweet-savory combos like that, try a classic example here: fig jam pizza.
Toppings:
- Miniature Reese’s peanut butter cups for obvious reasons.
- Reese’s Pieces for color and candy crunch.
- A sprinkle of flaky sea salt balances the sweetness.
- Banana slices add creaminess and pair well with peanut butter.
- Crushed pretzels or potato chips add salty crunch.
- Warm caramel drizzle turns this into an extra decadent treat.
Want to be extra? Drizzle melted peanut butter chocolate over the top. Love salty-sweet? Try crushed pretzel crust under the brownie layer. Honestly, this dessert behaves like a chameleon—what will you make it?
Storing and Reheating
Store leftovers in an airtight container in the fridge for up to 4 days. Press a sheet of parchment between layers to keep toppings intact. Reheat single slices in a warm oven at 325°F for 5–7 minutes if you want the frosting to soften, or enjoy cold for clean slices. FYI, never microwave unless you like sad, soggy candy.
To freeze, wrap slices individually in plastic and then foil, and store for up to two months. Thaw in the refrigerator overnight and then bring to room temperature or warm slightly before serving. Freezing slightly changes texture but keeps flavor intact.
Leftover ideas
Turn leftover slices into sundaes by warming chunks over ice cream. Chop slices and fold into milkshakes for instant dessert milkshakes. Use small crumbles as a topping for yogurt or oatmeal. Freeze individual slices and toast gently for a morning treat.
Make a layered trifle by alternating cake crumbles, whipped cream, and fruit. Blend crumbled pieces with oats and a touch of honey to form no-bake energy bites. Sprinkle crumbles over pancakes for a boozy brunch twist—just kidding, no alcohol needed unless you want it. Mix tiny crumbles into cookie dough for extra surprise pockets.
Frequently Asked Questions (FAQ)
Can I make this gluten-free?
Yes. Use a certified gluten-free boxed brownie mix and you are good. The rest of the recipe stays the same.
Can I use natural or crunchy peanut butter?
Yes, but adjust sweetness and texture. If you use natural peanut butter, stir well and add powdered sugar to thicken. Crunchy gives extra texture and I actually like that.
Can I make the brownie from scratch?
Absolutely. Use your favorite scratch brownie recipe and bake it in a pizza pan. Scratch gives better control over fudginess but takes more effort.
How do I prevent the frosting from separating?
Fold whipped cream gently into the peanut butter. Overmixing causes separation. Chill briefly if the mixture looks loose.
Can I make this ahead for a party?
Yes, assemble the brownie base a day ahead and store it un-frosted. Make the frosting the morning of the event and top just before serving for best texture.
Can I make this vegan?
Yes with swaps. Use a vegan boxed brownie mix, plant-based heavy cream alternative whipped into peaks, and a vegan butter or coconut oil to adjust texture.
Can I halve the recipe?
Yes. Reduce all ingredients by half and use a smaller pan. Watch baking time; smaller pans often bake faster.
How do I transport this to a party?
Place the whole pizza on a flat tray and chill so it firms up. Cover loosely with foil or a cake carrier and drive gently. Bring an emergency jar of extra candies in case of roadside emergencies.
Nutrition & Swap Ideas
This dessert leans rich and calorie-dense, so enjoy it as a treat. Swap ingredients to lighten it up if you want fewer calories or allergies. Use lower-sugar peanut butter, light whipped topping, or a reduced-fat brownie mix.
- Lower-sugar peanut butter for fewer added sugars.
- Greek yogurt mixed with peanut butter as a lighter spread.
- Cocoa-sweetened banana mashed into batter to replace some sugar.
- Nut-free option: use sunflower seed butter for allergies.
Conclusion:
This Peanut Butter Brownie Pizza hits the sweet spot between chocolaty, peanuty, and fun. Try it when you want a quick impressive dessert that feels homemade without heavy effort. Please leave a comment and rating if you try it—I want to hear about your topping experiments.
P.S. If you try a wild topping, tell me in the comments; I love weird combos and I might steal your idea next weekend.


Peanut Butter Brownie Pizza
Ingredients
For the Brownie Base
- 1 box brownie mix Use any preferred brand.
- 1 each Eggs (use quantity listed on the box)
- 1/2 cup Oil (amount on the box)
- 1/4 cup Water (amount on the box)
For the Frosting
- 1 cup creamy peanut butter
- 1 cup powdered sugar
- 1 cup heavy cream Whipped until soft peaks form.
For Topping
- 1 cup Miniature Reese’s peanut butter cups Chopped or halved if desired.
- 1 cup Reese’s Pieces For crunch and color.
Instructions
Preparation
- Preheat the oven according to brownie mix instructions.
- Prepare brownie mix as directed on the box, using eggs, oil, and water.
- Spread the brownie batter into a pizza pan and bake until a toothpick comes out clean.
Frosting and Assembly
- While the brownie crust cools, whip the heavy cream until soft peaks form.
- In another bowl, combine the peanut butter and powdered sugar until smooth.
- Fold the whipped cream into the peanut butter mixture to create the frosting.
- Once the crust has cooled, spread the peanut butter frosting over the brownie base as the ‘pizza sauce’.
- Top with miniature Reese’s cups and Reese’s Pieces.
- Slice and serve as a dessert pizza.