If you are a chocolate and peanut butter lover, this Peanut Butter Stuffed Brownies Recipe will absolutely steal your heart and your taste buds! Imagine biting into a rich, fudgy brownie with a velvety and creamy peanut butter center that melts perfectly in your mouth. This dessert is everything you want from a brownie—deep chocolate flavor, moist texture, and that irresistible peanut butter surprise inside that keeps you coming back for more. Whether you’re baking for a family gathering or simply treating yourself, these brownies effortlessly combine simple ingredients into an unforgettable flavor experience.

Ingredients You’ll Need
This Peanut Butter Stuffed Brownies Recipe uses straightforward ingredients that you probably already have in your pantry. Each component plays an essential role—from the creamy peanut butter that creates the irresistible center, to the sharp cocoa powder that gives the brownies their rich chocolatey depth. Together, they make this recipe as delicious as it is simple.
- 1 cup smooth peanut butter spread: Choose a creamy, spreadable peanut butter for the perfect soft center texture.
- 1 tsp salt flakes, divided: A pinch of seaside salt flakes balances the sweetness and enhances the chocolate flavors.
- 200g unsalted butter (about 1 3/4 US sticks): Butter adds richness and helps create that tender brownie crumb.
- 1 1/4 cups dark chocolate chips (about 7 oz): Using good quality dark chocolate chips intensifies the fudgy chocolate flavor.
- 1 cup loosely packed brown sugar: Brown sugar adds moisture and a subtle caramel undertone to the brownies.
- 3 large eggs, lightly beaten: Eggs bind the ingredients and provide the structure for a chewy yet soft brownie.
- 1 tsp vanilla extract: Vanilla deepens the flavors and adds a lovely aromatic hint.
- 1/2 cup plain flour: Just enough flour to hold together the gooey batter without overpowering it.
- 1/4 cup cocoa powder: Unsweetened cocoa powder delivers that signature chocolate punch.
- 1/8 tsp cooking salt or kosher salt: A tiny dash to intensify the overall taste without being salty.
How to Make Peanut Butter Stuffed Brownies Recipe
Step 1: Prepare the Peanut Butter Filling
Start by combining your smooth peanut butter and half of the salt flakes in a small bowl. Stir them together well so the salt is evenly distributed. This salty touch inside the peanut butter filling will create a stunning contrast to the sweet, rich brownie surrounding it.
Step 2: Melt the Butter and Chocolate
In a heatproof bowl over a pot of simmering water, gently melt the unsalted butter along with the dark chocolate chips. Stir continuously until the mixture is smooth and glossy. This step is key to achieving that fudgy, luscious texture that defines the Peanut Butter Stuffed Brownies Recipe.
Step 3: Mix the Batter
Remove the melted chocolate and butter from heat. Stir in the brown sugar until well blended, then add the beaten eggs and vanilla extract. Make sure each addition is fully incorporated before moving on to the next. This process ensures your brownies will be perfectly moist and flavorful.
Step 4: Combine Dry Ingredients
Sift together the plain flour, cocoa powder, and cooking salt, then gently fold them into your wet ingredients. Be careful not to overmix; the batter should come together smoothly without losing all its airiness, helping maintain the ideal chewy texture.
Step 5: Assemble and Bake
Pour half of the chocolate batter evenly into a lined baking pan. Carefully spread dollops of the peanut butter filling over the batter, then cover with the remaining chocolate batter. Use a knife or skewer to create gentle swirls if desired. Bake your brownies at 175°C (350°F) for about 30-32 minutes. The edges should look set while the center stays slightly soft but not runny. Allow to cool completely before cutting into squares.
How to Serve Peanut Butter Stuffed Brownies Recipe

Garnishes
Once cooled, these brownies look beautiful topped with a sprinkle of flaky sea salt to enhance the peanut butter’s salty-sweet balance. For an extra touch, add chopped roasted peanuts or a dusting of cocoa powder for a rustic, homemade vibe.
Side Dishes
Serve your brownies with a scoop of vanilla ice cream or a drizzle of warm chocolate sauce for a dessert that feels luxurious but still cozy. Fresh berries or a handful of sliced bananas work wonderfully to add a fresh contrast to the rich chocolate and peanut butter.
Creative Ways to Present
These brownies also shine when served as mini brownie sandwiches with a spoonful of peanut butter cream in between. You can even cut them into bite-size pieces, thread a skewer through two brownie bites, and serve them as fun dessert pops for parties.
Make Ahead and Storage
Storing Leftovers
You can keep leftover Peanut Butter Stuffed Brownies in an airtight container at room temperature for up to three days. They stay wonderfully moist and chewy, so you don’t need to rush to eat them, but honestly, who can resist?
Freezing
These brownies freeze beautifully. Wrap them tightly in plastic wrap and place in a freezer-safe bag or container. Frozen brownies keep their texture and flavor for up to three months—just thaw overnight in the fridge before enjoying.
Reheating
For a warm treat, reheat individual brownies in the microwave for about 10-15 seconds or until just warmed through. This brings back that melty, gooey center and enhances the comforting chocolate-peanut butter experience.
FAQs
Can I use crunchy peanut butter instead of smooth?
Absolutely! Crunchy peanut butter will add an extra layer of texture and nutty crunch to the center, which can be a delightful twist to the classic smooth filling.
Do I have to use dark chocolate chips?
Dark chocolate works best for that rich, deep chocolate flavor, but you can substitute with semi-sweet or milk chocolate chips if you prefer a sweeter, softer brownie.
Can I make this recipe gluten-free?
Yes, you can swap the plain flour with a gluten-free all-purpose flour blend. Just ensure it contains xanthan gum or another binder to maintain the brownie’s structure and texture.
How do I know when the brownies are done baking?
The edges should be firm and set, but the center can still have a slight jiggle when you gently shake the pan. Avoid overbaking to keep them fudgy and moist.
Can I double the recipe for a bigger batch?
Definitely! Just double all the ingredients and use a larger pan, adjusting baking time accordingly. Keep an eye on the brownies so they don’t overbake as bigger batches may take slightly longer.
Final Thoughts
This Peanut Butter Stuffed Brownies Recipe is a personal favorite that never fails to impress. Those rich, fudgy brownies with a luscious peanut butter center create a harmonious flavor combo that feels wonderfully indulgent but simple to make. If you’re looking for a dessert that will bring smiles and dessert table praise alike, give this recipe a go—you might just find your new go-to treat.
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Peanut Butter Stuffed Brownies Recipe
- Prep Time: 15 minutes
- Cook Time: 32 minutes
- Total Time: 47 minutes
- Yield: 16 brownies
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
These Peanut Butter Stuffed Brownies are a delicious fusion of rich, fudgy chocolate brownies with a creamy peanut butter center, creating a perfect balance of sweet and salty flavors. With a moist texture from the dark chocolate and a luscious peanut butter filling, these brownies are ideal for chocolate lovers who enjoy a nutty twist in their dessert.
Ingredients
Peanut Butter Filling
- 1 cup (250g) smooth peanut butter spread
- 1/2 tsp salt flakes (divided)
Brownie Batter
- 1 tsp salt flakes (divided)
- 200g / 14 tbsp unsalted butter (1 3/4 US sticks)
- 1 1/4 cups (200g) dark chocolate chips (7 oz)
- 1 cup loosely packed brown sugar
- 3 large eggs, lightly beaten
- 1 tsp vanilla extract
- 1/2 cup plain flour
- 1/4 cup cocoa powder
- 1/8 tsp cooking salt / kosher salt
Instructions
- Prepare the peanut butter filling: In a small bowl, mix the smooth peanut butter with half of the salt flakes to enhance its flavor. Set this filling aside for stuffing later.
- Melt the chocolate and butter: In a heatproof bowl over simmering water or using a microwave, melt the unsalted butter together with the dark chocolate chips, stirring until smooth and well combined. Allow to cool slightly.
- Mix the batter: Into the chocolate mixture, stir in the brown sugar until fully incorporated. Gradually add the lightly beaten eggs, mixing thoroughly, then stir in the vanilla extract.
- Add dry ingredients: Sift together the plain flour, cocoa powder, and cooking salt. Gently fold the dry ingredients into the wet mixture, being careful not to overmix, until just combined.
- Assemble the brownies: Preheat your oven to 175°C (350°F). Line a baking pan with parchment paper. Pour half of the brownie batter into the pan and spread evenly. Dollop the peanut butter mixture over the batter, distributing it in spoonfuls. Sprinkle the remaining salt flakes over the peanut butter for a salty-sweet contrast. Carefully spoon the remaining brownie batter over the peanut butter layer to cover it.
- Bake: Place the pan in the preheated oven and bake for approximately 30 to 32 minutes, or until a toothpick inserted near the edges comes out with a few moist crumbs. The brownies should be fudgy and set on top.
- Cool and serve: Remove from the oven and allow the brownies to cool completely in the pan before cutting into 16 squares. This cooling step helps the peanut butter filling set and prevents the brownies from crumbling.
Notes
- Use smooth peanut butter for a creamy, easy-to-spread filling.
- Dark chocolate chips with 60-70% cocoa content work best for rich flavor.
- Don’t overbake; fudgy brownies are the goal.
- If preferred, sprinkle coarse sea salt on top for an enhanced salty-sweet contrast.
- To store, keep brownies in an airtight container at room temperature for up to 3 days, or refrigerate for up to a week.
