Peanut Butter Stuffed Brownies

Name: Peanut Butter Stuffed Brownies
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: American
Ingredients: 1 1/4 cups creamy conventional peanut butter; 10 tablespoons unsalted butter; 4 ounces semisweet baking chocolate; 1 cup granulated sugar; 2 large eggs + 1 egg yolk; 1 teaspoon vanilla extract; 1/2 cup all-purpose flour; 1/4 cup unsweetened cocoa powder; 1/4 teaspoon fine sea salt

Recipe By:

Natalia

Posted:

May 8, 2026

Updated:

May 8, 2026

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Peanut Butter Stuffed Brownies are the ultimate dessert for chocolate and peanut butter fans. These fudgy brownies boast a thick layer of creamy peanut butter, creating a decadent treat that is perfect for any occasion. Whether you’re hosting a party, celebrating a birthday, or simply indulging in a sweet craving, these brownies will impress everyone. Their rich flavor and gooey texture make them unforgettable!

Why You’ll Love This Recipe

Irresistible Flavor: The combination of rich chocolate and smooth peanut butter creates an indulgent taste experience.
Easy to Make: With just a few simple steps, you can whip up these delicious brownies in no time.
Perfect for Sharing: Cut them into large or small pieces to share with friends and family at gatherings or potlucks.
Customizable Treats: Feel free to add nuts or chocolate chips for extra texture and flavor variations.
Decadent Texture: These brownies are fudgy and moist, ensuring each bite is as satisfying as the last.

Tools and Preparation

Before you start making your Peanut Butter Stuffed Brownies, gather the necessary tools to ensure a smooth baking process.

Essential Tools and Equipment

Mixing bowls
Measuring cups and spoons
Rubber spatula
Baking pan (8×8 inches)
Parchment paper
Double boiler or microwave-safe bowl

Importance of Each Tool

Mixing bowls: Essential for combining ingredients thoroughly without any mess.
Baking pan: The right size is crucial for even baking; an 8×8 inch pan works perfectly.
Parchment paper: Helps prevent sticking, making it easier to remove the brownies once baked.

Ingredients

Peanut Butter Stuffed Brownies are fudgy chocolate brownies stuffed with a thick layer of pure peanut butter for the most rich and indulgent treat. For serious peanut butter lovers only!!

For the Brownies

1 1/4 cups (336 grams) creamy conventional peanut butter (NOT ‘natural’)
10 tablespoons (142 grams) unsalted butter
4 ounces (113 grams) semisweet baking chocolate, chopped
1 cup (200 grams) granulated sugar
2 large eggs plus 1 egg yolk
1 teaspoon vanilla extract
1/2 cup (64 grams) all-purpose flour
1/4 cup (25 grams) unsweetened cocoa powder, sifted
1/4 teaspoon fine sea salt

For Garnish

2 tablespoons fresh parsley, finely chopped

How to Make Peanut Butter Stuffed Brownies

Step 1: Preheat the Oven

Preheat your oven to 350°F (175°C). This ensures that your Peanut Butter Stuffed Brownies bake evenly.

Step 2: Prepare Your Baking Pan

Line an 8×8 inch baking pan with parchment paper, leaving some overhang on the sides. This will make it easier to lift out the brownies later.

Step 3: Melt the Chocolate and Butter

In a double boiler or microwave-safe bowl, melt the chopped semisweet baking chocolate and unsalted butter together. Stir until smooth and fully combined.

Step 4: Mix Wet Ingredients

In a large mixing bowl, combine the melted chocolate mixture with granulated sugar. Add in the eggs (two whole eggs plus one yolk) and vanilla extract. Whisk until well blended.

Step 5: Combine Dry Ingredients

In another bowl, mix together all-purpose flour, sifted cocoa powder, and fine sea salt. Gradually fold this mixture into the wet ingredients using a rubber spatula until just combined.

Step 6: Fill with Peanut Butter

Pour half of the brownie batter into the prepared pan. Spread it out evenly. Next, spoon dollops of creamy peanut butter over this layer. Finally, pour the remaining brownie batter on top and spread gently to cover.

Step 7: Bake

Place the pan in your preheated oven. Bake for about 30 minutes or until a toothpick inserted comes out with moist crumbs.

Step 8: Cool and Serve

Once baked, let them cool in the pan for at least 10 minutes before lifting out using parchment paper. Cut into squares and enjoy!

How to Serve Peanut Butter Stuffed Brownies

Peanut Butter Stuffed Brownies are a delightful dessert that can be enjoyed in various ways. Whether you want to impress guests or simply indulge yourself, here are some serving suggestions to elevate your brownie experience.

Classic with Ice Cream

Vanilla Ice Cream: A scoop of creamy vanilla ice cream on top enhances the rich chocolate and peanut butter flavors.
Chocolate Ice Cream: For serious chocolate lovers, pairing with chocolate ice cream deepens the indulgence.

Topped with Whipped Cream

Homemade Whipped Cream: Light and fluffy whipped cream adds a nice contrast to the dense brownies.
Peanut Butter Whipped Cream: Mix peanut butter into your whipped cream for an extra layer of flavor that complements the brownies perfectly.

Dressed with Chocolate Sauce

Drizzled Chocolate Sauce: A warm drizzle of chocolate sauce over the brownies creates a decadent finish.
Peanut Butter Sauce: Warm up peanut butter and drizzle it over for an irresistible nutty touch.

Garnished with Nuts

Chopped Peanuts: Sprinkle chopped peanuts on top for added crunch and a nutty flavor profile.
Walnuts or Pecans: Adding walnuts or pecans can give an interesting texture variation while enhancing the overall taste.

How to Perfect Peanut Butter Stuffed Brownies

To make sure your Peanut Butter Stuffed Brownies turn out perfectly every time, follow these helpful tips.

Use Quality Ingredients: Starting with high-quality chocolate and creamy peanut butter will greatly enhance the flavor.
Don’t Overmix the Batter: Mix just until combined to keep your brownies fudgy and prevent them from becoming tough.
Check for Doneness: Keep an eye on them in the oven; they should look set but slightly moist in the center when done.
Let Them Cool Completely: Allowing brownies to cool helps them set properly, making them easier to cut and serve.
Experiment with Mix-ins: Feel free to add chocolate chips or nuts into the batter for extra texture and flavor.

Best Side Dishes for Peanut Butter Stuffed Brownies

These Peanut Butter Stuffed Brownies pair wonderfully with a variety of side dishes. Here are some great options to consider when serving:

Fresh Fruit Salad: A mix of seasonal fruits adds brightness and balances the sweetness of the brownies.
Chocolate Fondue: Melted chocolate served alongside allows guests to dip their brownies for an extra chocolaty experience.
Milkshakes: Rich milkshakes, especially peanut butter or chocolate-flavored ones, complement these brownies nicely.
Coffee or Espresso: A strong cup of coffee enhances the chocolate flavor and makes for a perfect after-dinner treat.
Caramel Sauce: Drizzling warm caramel sauce over each brownie introduces another layer of sweetness and texture.
Cheesecake Bites: Small cheesecake bites provide a creamy contrast that pairs well with the richness of brownies.

Common Mistakes to Avoid

When making Peanut Butter Stuffed Brownies, it’s easy to make a few common errors. Here are some mistakes to avoid for the best results.

Using Natural Peanut Butter: Natural peanut butter can be too oily and doesn’t provide the same rich flavor. Stick with creamy conventional peanut butter for the best texture and taste.
Not Melting Chocolate Properly: If you don’t melt the chocolate evenly, it can clump in the batter. Use a double boiler or microwave in short bursts to ensure smooth melting.
Overmixing the Batter: Overmixing can lead to dense brownies instead of fudgy ones. Mix just until combined for a lighter texture.
Skipping the Salt: Forgetting the salt can dull the flavors. A small amount enhances both chocolate and peanut butter, bringing out their richness.
Not Letting Brownies Cool: Cutting into warm brownies makes them fall apart. Allow them to cool completely before slicing for neat edges.

Refrigerator Storage

Store Peanut Butter Stuffed Brownies in an airtight container.
They will last up to 5 days in the refrigerator.
Place parchment paper between layers to prevent sticking.

Freezing Peanut Butter Stuffed Brownies

Wrap individual brownies tightly in plastic wrap or aluminum foil.
Freeze for up to 3 months for optimal freshness.
Use a freezer-safe container if stacking multiple brownies.

Reheating Peanut Butter Stuffed Brownies

Oven: Preheat your oven to 350°F (175°C). Place brownies on a baking sheet and heat for about 10 minutes.
Microwave: Heat one brownie at a time for about 15-20 seconds on medium power. This keeps them soft without drying out.
Stovetop: Place a brownie in a skillet over low heat. Cover with a lid for about 1-2 minutes, checking frequently to avoid burning.

Frequently Asked Questions

How do I make Peanut Butter Filling For Brownies?

To create the filling, simply use creamy conventional peanut butter mixed with a bit of powdered sugar until smooth. This achieves a sweet, spreadable consistency perfect for stuffing your brownies.

Can I use dark chocolate instead of semisweet?

Yes, using dark chocolate can enhance the richness of your Peanut Butter Stuffed Brownies. Just be sure to adjust any sugar levels if necessary.

How do I store leftover Peanut Butter Stuffed Brownies?

Store leftovers in an airtight container in the refrigerator for up to five days or freeze them for longer storage as mentioned earlier.

What is the best way to cut my brownies?

For clean cuts, use a sharp knife heated under hot water. Wipe it clean between cuts to maintain neat edges on your Peanut Butter Stuffed Brownies.

Final Thoughts

Peanut Butter Stuffed Brownies are not just delicious but also versatile. Their rich chocolate flavor paired with creamy peanut butter makes them an indulgent treat everyone will love. Feel free to customize these brownies by adding nuts or drizzling melted chocolate on top. Try this recipe today and enjoy every bite!