Peanut Butter Stuffed Brownies

Peanut Butter Stuffed Brownies bring back the memory of layering creamy peanut butter between rich homemade brownies made with brown sugar, chocolate chips, and vanilla extract. I first baked them on a whim, spreading the peanut butter over the batter and letting the oven do its magic at 350°F. The result? A fudgy, peanut butter and chocolate dream that quickly became a favorite. Now, I always let them cool completely before slicing and store them in an airtight container—for as long as they last.

Ingredients for Peanut Butter Stuffed Brownies

This peanut butter stuffed brownie recipe brings together all the essentials of rich, indulgent homemade brownies. You’ll start by using creamy peanut butter—not the natural kind, but the smooth sandwich spread type—for the decadent peanut butter filling. Each ingredient contributes to the perfect texture and taste, from brown sugar to dark chocolate chips. For the best outcome, always use room temperature ingredients and remember to preheat oven to 350 before baking. Once baked, let them cool completely and store in an airtight container for lasting freshness. These are the ultimate peanut butter and chocolate combo.

• 1 cup (250g) smooth peanut butter for stuffing 
• 1 tsp salt flakes
• 200g (14 tbsp) unsalted butter
• 1 1/4 cups (200g) dark chocolate chips
• 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

These ingredients blend to form a thick batter perfect for spreading the peanut butter into layers. Whether you top with peanut butter or serve them as is, these peanut butter brownies never disappoint.

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How to Make Peanut Butter Stuffed Brownies

Making these peanut butter stuffed brownies is simpler than it looks, and the reward is pure indulgence. This brownie recipe uses creamy peanut butter for the filling, rich chocolate chips, and a base made from flour, cocoa powder and salt. You’ll create layers of peanut butter and chocolate that mimic a soft peanut butter cup. For the best texture, always work with room temperature ingredients, and don’t skip the cooling time. Follow these steps to get perfect butter stuffed brownies every time.

1. Prepare the pan
   Grease a 20cm (8-inch) square pan and line it with parchment paper for easy lifting later.
2. Make the peanut butter filling
   Set aside 2 tablespoons of creamy peanut butter for topping. Microwave the rest for about 30 seconds to loosen it, then pour and spread evenly in the lined pan. Sprinkle with half the salt flakes and freeze for 2–3 hours until solid. Once frozen, lift the slab out with the paper and return it to the freezer while you make the brownie batter.
3. Line the pan again
   Line your pan again with parchment paper, leaving an overhang to lift the finished brownies out easily.
4. Preheat oven to 350°F
   Set your oven to 350°F (or 160°C fan-forced) to ensure consistent baking throughout.
5. Melt the base ingredients
   Place butter and chocolate chips in a heatproof bowl and microwave in 30-second intervals, stirring in between, until smooth and fully melted. This should take about 90 seconds.
6. Mix the batter
   Stir in the brown sugar, then add the eggs and vanilla extract. Mix until silky and smooth. Fold in the flour, cocoa powder and salt to finish your brownie batter.
7. Layer and fill
   Pour half the batter into the prepared pan. Carefully lay the frozen peanut butter filling over it. Spread the rest of the brownie batter on top, covering the filling completely.
8. Swirl the top
   Dollop the reserved peanut butter across the top and use a knife or teaspoon to create gentle swirls. Make sure some brownie batter peeks through.
9. Bake to perfection
   Bake for about 32 minutes. The center should jiggle slightly while the edges feel firm. It will set fully as it cools.
10. Cool and slice
    Let your brownies cool on the counter for an hour, then chill in the fridge for at least 3 hours. This ensures the peanut butter filling sets and doesn’t ooze when sliced. Cut into 16 squares and let sit at room temperature for 15 minutes before serving.

Tips for Success

To get the best results with your peanut butter stuffed brownies, follow these quick tips. Always use room temperature ingredients for a smooth batter. Stick to creamy peanut butter (not natural) for easy spreading. Measure flour, cocoa powder and salt carefully to maintain the perfect texture. Let your brownies cool completely and chill before slicing to keep the peanut butter filling set. Finally, store in an airtight container to keep your homemade brownies fresh and soft. A few chocolate chips or a swirl on top with peanut butter adds extra flavor and a beautiful finish.

Equipment Needed for Peanut Butter Stuffed Brownies

To successfully make these peanut butter stuffed brownies, you’ll need just a few basic tools. These ensure your brownie recipe turns out rich, gooey, and packed with that peanut butter and chocolate flavor. From melting chocolate chips to spreading the peanut butter filling, having the right items makes it easier to bake homemade brownies that cool completely and slice clean.

– 8-inch square baking pan – Perfect size for thick, butter stuffed brownies.
– Parchment paper – Helps lift the brownies out cleanly after they cool.
– Mixing bowls – You’ll need separate bowls for melting, mixing, and handling room temperature ingredients.
– Microwave-safe bowl – For melting butter and chocolate chips smoothly.
– Spatula or wooden spoon – Ideal for folding in flour, cocoa powder and salt without overmixing.
– Butter knife or skewer – Essential for swirling that creamy peanut butter on top before baking.
– Measuring cups and spoons – Accurate measurements are key for ingredients like brown sugar and vanilla extract.
– Freezer-safe dish or tray – To shape and set the peanut butter filling before layering.

Keep everything handy, preheat oven to 350, and you’re all set to bake peanut butter brownies that taste just like a soft peanut butter cup.

Variations of Peanut Butter Stuffed Brownies

Peanut butter stuffed brownies are already a rich treat, but a few easy variations can make them even more exciting. These ideas let you experiment with different textures and flavors while keeping the core of the peanut butter and chocolate combo intact. No matter how you tweak the brownie recipe, remember to use room temperature ingredients and allow your dessert to cool completely before slicing.

– Nutty Crunch: Add chopped roasted peanuts or crushed peanut butter cups to the batter or sprinkle them on top with peanut butter before baking for extra texture.

– Double Chocolate: Stir extra chocolate chips into the batter or drizzle melted chocolate over the top once cooled for a more indulgent bite.

– Swirl Style: Skip the peanut butter slab and go with a heavy swirl of creamy peanut butter throughout the batter for a more marbled look and balanced flavor.

– Salted Caramel Layer: Replace the peanut butter filling with a soft caramel and sea salt layer for a twist on the classic butter stuffed brownies.

– Gluten-Free Option: Swap the flour with a gluten-free blend while keeping the cocoa powder and salt ratio the same for chewy, gluten-free homemade brownies.

Each version holds its own charm, whether you love spreading the peanut butter thick or prefer a subtle peanut butter cup flavor in the center. Store in an airtight container after baking to keep every variation fresh and satisfying.

Serving Suggestions for Peanut Butter Stuffed Brownies

Once your peanut butter brownies cool completely, here are simple ways to serve them:

• Warm with Ice Cream: Pair with vanilla ice cream to complement the peanut butter and chocolate layers.
• Top with Peanut Butter: Drizzle warmed creamy peanut butter over each slice for extra richness.
• Holiday Dessert Platter: Cut into bite-size pieces and serve with other flour cocoa powder and salt-based treats.
• Coffee or Milk: Enjoy alongside a hot drink or cold milk to balance the sweetness.
• Add Crunch: Sprinkle chopped peanut butter cups or chocolate chips just before serving.

Always store in an airtight container to keep these homemade brownies fresh.

5 FAQs About Peanut Butter Stuffed Brownies

1. Can I use natural peanut butter for the filling?
It’s best to avoid natural peanut butter, as it tends to separate and makes spreading the peanut butter difficult. Stick with creamy peanut butter spreads for a smooth, even layer.

2. Why should ingredients be at room temperature?
Room temperature ingredients blend more easily, resulting in a smooth brownie batter and even texture in your homemade brownies.

3. How do I know when the brownies are done baking?
The edges should feel firm, and the center will still jiggle slightly. It sets as it cools completely, giving you that perfect fudgy texture.

4. How should I store peanut butter stuffed brownies?
Once cooled, store in an airtight container in a cool, dry place. This keeps the peanut butter and chocolate fresh and soft for days.

5. Can I freeze these brownies?
Yes, wrap each square individually and freeze. Thaw at room temperature and enjoy that same rich peanut butter cup taste later.

Final Thoughts

Peanut butter stuffed brownies are the perfect combination of rich chocolate and creamy peanut butter filling, delivering that irresistible peanut butter and chocolate experience in every bite. Using simple ingredients like brown sugar, vanilla extract, and flour cocoa powder and salt, this brownie recipe creates a treat that feels indulgent yet easy to make. Just remember to preheat oven to 350, use room temperature ingredients, and let them cool completely before cutting. Whether you’re topping with peanut butter or folding in chocolate chips, these homemade brownies are sure to become a staple. Learn more about peanut butter and its history here.

More Bibodo Recipes to Try Peanut Butter Stuffed Brownies

Looking to expand your homemade brownie repertoire and explore more delicious treats inspired by rich, comforting flavors like peanut butter and chocolate? Here are five recipe suggestions from Bibodo’s family-friendly kitchen, each offering a unique twist that complements your indulgent brownie recipe:

• Try the soothing Lemon Balm Recipe for a more traditional lemon balm tea alternative that highlights similar relaxation and digestive benefits.
• Sip on the Pink Salt Recipe for Weight Loss, which pairs well with the benefits of lemon and supports hydration and blood sugar balance.
• Enjoy a refreshing variation with our Japanese Pink Salt Recipe, crafted to gently assist weight loss goals while offering mineral-rich support.
• Need another light, feel-good beverage? The Pink Salt Trick Recipe for Weight Loss offers a unique blend of ingredients that align with natural wellness routines