Decadent Peanut Butter Stuffed Brownies You’ll Crave!

Last Updated on February 12, 2026 by Aniela Recipes Team

There s a moment that defines every baking adventure, and for me, it was the first time I unveiled a tray of warm Peanut Butter Stuffed Brownies. The rich aroma of chocolate mingling with creamy peanut butter is enough to make anyone weak in the knees. As I watched my friends lift gooey squares from the pan, their eyes lighting up with delight, I knew this recipe was meant to be shared.

This isn t just any brownie recipe; it s a deeply satisfying combination of fudgy brownie and a surprise peanut butter layer that makes each bite an experience. Perfect for times when fast food just won t do, these brownies offer a homemade charm that everyone craves, without hours spent in the kitchen.

Whether you re planning a cozy gathering, a small celebration, or just a sweet treat for yourself, these Peanut Butter Stuffed Brownies are your answer. They re incredibly easy to whip up, yet they deliver a flavor that feels indulgent and special. Ready to dive in? Let s make some magic happen!

Why are Peanut Butter Stuffed Brownies irresistible?

Decadent flavor: The rich combination of fudgy brownie and creamy peanut butter creates a mouthwatering treat that s hard to resist.
Simplicity: With easy-to-follow steps, even novice bakers can create this indulgent dessert without hassle.
Crowd-pleaser: Whether for a gathering or a family night, these brownies are sure to satisfy everyone s sweet tooth.
Versatile: Serve them warm with ice cream or enjoy them chilled for a delightful twist.
Time-saving: They come together quickly, perfect for those who crave homemade goodness without spending all day in the kitchen.
Get ready to impress your friends with this irresistible treat!

Peanut Butter Stuffed Brownies Ingredients

Get ready to indulge with these rich flavors!

For the Brownie Batter

• Creamy conventional peanut butter 1 1/4 cups (336 grams) adds a luscious layer of flavor and richness.
• Unsalted butter 10 tablespoons (142 grams) helps create that moist and fudgy brownie texture.
• Semisweet baking chocolate 4 ounces (113 grams), chopped, for that deep, chocolaty goodness.
• Granulated sugar 1 cup (200 grams) sweetens the brownies to perfection.
• Large eggs 2 eggs for the right binding and fluffiness in the batter.
• Egg yolk 1 yolk enhances richness and moisture.
• Vanilla extract 1 teaspoon, because every dessert needs a touch of vanilla magic.
• All-purpose flour 1/2 cup (64 grams) keeps the texture light but chewy.
• Unsweetened cocoa powder 1/4 cup (25 grams), sifted, adds intense chocolate flavor.
• Fine sea salt 1/4 teaspoon to elevate the sweetness and balance out the flavors.

For the Peanut Butter Layer

• Frozen peanut butter sheet At the heart of these Peanut Butter Stuffed Brownies, creating a wonderful surprise in every bite!

Prepare to immerse yourself in this delicious journey and enjoy the delightful combination of flavors!

How to Make Peanut Butter Stuffed Brownies

1. Melt the peanut butter: Place the creamy peanut butter in a heat-safe bowl and microwave for 20 to 30 seconds until it s pourable but not overly hot.

2. Prepare the pan: Line an 8-inch metal square pan with parchment paper, letting it overhang. Spread the melted peanut butter into an even layer in the pan and freeze for 1 hour or until solid.

3. Preheat oven: While the peanut butter layer is freezing, preheat your oven to 350 °F and line the square pan again with parchment paper for easy removal.

4. Melt butter and chocolate: In a large microwave-safe bowl, combine the unsalted butter and semisweet baking chocolate. Microwave in 30-second bursts, stirring well until smooth and melted.

5. Combine sugar: Add the granulated sugar to the warm butter mixture. Whisk vigorously until well blended, then let it cool just slightly until it s barely warm.

6. Add eggs and vanilla: Whisk in the two large eggs, egg yolk, and vanilla extract for about 1 minute until everything is super well combined.

7. Mix in dry ingredients: Gently stir in the all-purpose flour, unsweetened cocoa powder, and fine sea salt using a rubber spatula until just combined don t overmix.

8. Layer the batter: Pour half of the brownie batter into the prepared pan and smooth it out. Place the frozen peanut butter sheet on top, then pour the remaining batter over, completely covering the peanut butter.

9. Bake: Slide the pan into the preheated oven and bake for about 30 minutes, or until cooked through but still slightly gooey in the center.

10. Cool and slice: Let the brownies cool in the pan for 30 minutes before removing them. Allow to cool for another 30 minutes before slicing into squares and serving.

Optional: Serve warm with a scoop of vanilla ice cream for an extra treat!
Exact quantities are listed in the recipe card below.

What to Serve with Peanut Butter Stuffed Brownies?

Indulging in these fudgy delights calls for the perfect accompaniments to elevate your dessert experience.

• Vanilla Ice Cream: The classic pairing of creamy vanilla ice cream adds a refreshing contrast to the rich, decadent brownies.
• Chocolate Sauce: Drizzle warm chocolate sauce over the brownies for an intensified chocolate experience that will satisfy any sweet tooth.
• Fresh Berries: Tart raspberries or strawberries cut through the sweetness, offering a delightful freshness that balances the richness perfectly.
• Whipped Cream: Light and airy whipped cream makes every bite feel luxurious, adding a complementary texture that enhances the brownies fudginess.
• Coffee: A strong cup of coffee or espresso brings out the chocolate flavors, making it an excellent companion to round off your dessert.
• Milk: A classic tall glass of cold milk pairs beautifully, softening the richness of the brownies while enhancing their decadent flavor profile.
• Peanut Butter Drizzle: Elevate your brownies with a warm peanut butter drizzle on top, amplifying that irresistible nutty flavor in every bite.
• Toasted Nuts: Sprinkling chopped toasted nuts over your brownies adds a satisfying crunch that contrasts wonderfully with their soft texture.
• Caramel Sauce: A drizzle of warm caramel sauce lends a sweet sophistication, making your decadent brownies even more indulgent.

Peanut Butter Stuffed Brownies Variations

Feel free to let your creativity run wild as you explore these delicious twists on the classic Peanut Butter Stuffed Brownies!

• Nut-Free: Use sunbutter or soy nut butter instead of peanut butter for a nut-free treat that s equally delightful!

• Vegan: Substitute the eggs with flax eggs (1 tablespoon of ground flaxseed mixed with 2.5 tablespoons of water) and replace the butter with coconut oil for a vegan version everyone will love. The sweetness of the brownies shines through!

• Gluten-Free: Swap all-purpose flour with a gluten-free blend or almond flour to create a tasty gluten-free version that doesn t skimp on flavor. Your gluten-free friends will thank you!

• White Chocolate Delight: For a luscious change, mix in white chocolate chips or chunks to the brownie batter for a sweet contrast against the dark chocolate. You ll adore the creamy textures!

• Minty Fresh: Add a teaspoon of peppermint extract to the batter for a refreshing twist, perfect for those who love the combination of mint and chocolate. It s like a sweet surprise in every bite!

• Spicy Kick: For those who enjoy a bit of heat, incorporate a pinch of cayenne pepper into the brownie batter. The unexpected heat will take your taste buds on a thrilling journey!

• Caramel Swirl: Drizzle store-bought or homemade caramel sauce throughout the brownie batter before baking for an extra special sweetness. It s a match made in dessert heaven!

• Nutty Crunch: Fold in chopped nuts, like walnuts or pecans, to the brownie batter for added texture and nutty flavor. The crunch will elevate the fudginess to a whole new level!

Helpful Tricks for Peanut Butter Stuffed Brownies

• Temperature Check: Always melt the peanut butter until it s pourable but not hot. This ensures it spreads easily without melting the chocolate layer.

• Layering Patience: Don t rush the freezing of the peanut butter layer! It s essential for creating that delightful surprise in every bite of your Peanut Butter Stuffed Brownies.

• Mixing Gently: When combining the dry ingredients, mix just until incorporated. Overmixing can lead to dense brownies instead of the light, fudgy texture you want.

• Oven Timing: Keep an eye on your brownies while baking. They should slightly jiggle in the center when done, as they continue to set after cooling.

• Cooling Game: Letting brownies cool in the pan ensures proper texture. If you slice too early, you may end up with messy pieces instead of beautiful squares.

How to Store and Freeze Peanut Butter Stuffed Brownies

Room Temperature: Keep your Peanut Butter Stuffed Brownies at room temperature in an airtight container for up to 3 days. This ensures they stay moist while still being easy to grab.

Fridge: For longer freshness, store the brownies in the refrigerator for up to a week. Be sure to wrap them tightly to prevent them from drying out.

Freezer: Freeze individually wrapped brownies for up to 2 months. Place them in a freezer-safe bag or container, and thaw at room temperature or microwave for a few seconds when ready to enjoy.

Reheating: To reheat, simply place brownies in the microwave for about 10-15 seconds until just warm. This will bring back that mouthwatering fudgy texture!

Make Ahead Options

These delicious Peanut Butter Stuffed Brownies are perfect for meal prep, allowing you to enjoy homemade goodness all week long! You can prepare the peanut butter layer and freeze it up to 24 hours in advance. Simply melt the peanut butter, spread it in the pan, and freeze until solid. Additionally, the brownie batter can be mixed together 1-2 days ahead of time; store it in an airtight container in the fridge to keep it fresh. When you re ready to bake, simply layer the frozen peanut butter sheet within the brownie batter and bake as directed. This way, you ll have warm, gooey brownies to share with minimal effort, just when you need them!

Peanut Butter Stuffed Brownies Recipe FAQs

What kind of peanut butter is best to use?
Absolutely! For these brownies, a creamy conventional peanut butter works best. It gives that signature richness and spreads easily. Avoid natural peanut butter with oil separation, as it can lead to a different texture when frozen and baked.

How should I store my brownies?
You can keep your Peanut Butter Stuffed Brownies at room temperature for up to 3 days in an airtight container to maintain their moisture. If you prefer longer storage, then place them in the fridge where they can last for up to a week. Just be sure to wrap them tightly to prevent them from becoming dry!

Can I freeze the brownies?
Very much so! To freeze your Peanut Butter Stuffed Brownies, wrap them individually in plastic wrap, then place them in a freezer-safe bag. They can last in the freezer for up to 2 months. When you re ready to indulge, simply thaw them at room temperature for a couple of hours or pop them in the microwave for about 10 seconds to regain that fudgy goodness!

What do I do if my brownies are too gooey in the center?
If your brownies are undercooked and too gooey, don t fret! It s essential to bake them until a toothpick inserted in the center comes out with a few moist crumbs, not wet batter. If they still seem too soft after the recommended baking time, return them to the oven for an additional 5 minutes. Always let them cool in the pan for better texture before slicing.

Are these brownies safe for people with allergies?
These Peanut Butter Stuffed Brownies contain common allergens like peanut butter and eggs. If you have peanut allergies, consider using sunflower seed butter or a nut-free alternative coupled with egg substitutes. Always check the labels to ensure no cross-contamination with allergens!

Can I substitute any ingredients?
Certainly! If you re looking for a healthier twist, you can swap granulated sugar for coconut sugar or a sugar alternative. For those who need gluten-free options, using almond flour or a store-bought gluten-free flour blend can work beautifully just adjust the quantity slightly to maintain the right texture. Enjoy experimenting!