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If you are craving a dessert that is both decadent and delightfully surprising, look no further than this Peanut Butter Stuffed Brownies Recipe. Imagine biting into rich, fudgy brownies with an irresistible layer of gooey peanut butter cups melting in the middle, topped with a luscious blanket of melted chocolate and crunchy peanut butter pieces. Every forkful brings a perfect harmony of chocolate intensity and savory peanut butter creaminess. This recipe transforms a classic brownie into a sensational treat that’s sure to become an instant favorite for any chocolate and peanut butter lover.

Ingredients You’ll Need
Gathering simple yet carefully chosen ingredients is key to achieving that perfect balance in your Peanut Butter Stuffed Brownies Recipe. Each item plays a vital role, from the rich melted chocolate that deepens the flavor to the peanut butter cups that create that delicious surprise in the center.
- Unsweetened chocolate (2 oz): Provides a deep, intense chocolate flavor that is the foundation of the brownie.
- Canola oil (1/3 cup): Ensures moistness and keeps the texture wonderfully soft and tender.
- Eggs (2): Bind the ingredients and add richness to the batter’s body.
- Sugar (1 cup): Sweetens the brownies perfectly without overpowering the chocolate or peanut butter.
- Flour (3/4 cup): Gives structure to the brownies, helping them hold together beautifully.
- Baking powder (1/2 tsp): Offers just the right amount of lift for a slightly cakey texture.
- Salt (1/2 tsp): Balances and enhances the sweetness and flavors.
- Chocolate chips (1 cup): Melts on top to create a glossy, chocolatey finish.
- Chopped peanut butter cups (1 cup): Adds crunch and bursts of peanut butter flavor on top.
- Unwrapped peanut butter cups (1 bag): These are the secret treasure hidden inside the brownies for that irresistible gooey surprise.
How to Make Peanut Butter Stuffed Brownies Recipe
Step 1: Prepare Your Baking Dish and Oven
Start by preheating your oven to a cozy 350 degrees Fahrenheit (175 Celsius). Grab an 8-inch baking dish and either spray it generously with non-stick spray or line it with foil or parchment paper. This prep helps your brownies come out cleanly and keeps the baking process smooth.
Step 2: Mix the Chocolate and Oil
In a medium mixing bowl, combine the melted unsweetened chocolate and canola oil. Stir gently until you get a luxuriously smooth mixture. This blend creates the moist, rich base that will carry all the delicious flavors.
Step 3: Add Eggs and Sugar
To your chocolate-oil mixture, whisk in the eggs one at a time, followed by the sugar. This step incorporates air and builds structure, resulting in brownies with a tender crumb and just the right sweetness.
Step 4: Combine Dry Ingredients
In a separate bowl, sift together the flour, baking powder, and salt. Gradually fold these dry ingredients into the wet mixture, stirring just until everything is combined without overmixing, which keeps the texture delightfully soft and chewy.
Step 5: Spread Batter and Layer Peanut Butter Cups
Pour half of the brownie batter into your prepared baking dish, spreading it evenly with a spatula. Then, carefully arrange the unwrapped peanut butter cups in a single layer on top of the batter. This step creates the iconic stuffed center that makes this recipe so memorable.
Step 6: Add Remaining Batter and Bake
Cover the peanut butter cups with the remaining brownie batter, smoothing the surface evenly. Slide your dish into the oven and bake for 20 to 25 minutes. You’ll know they’re done when a toothpick inserted near the center comes out mostly clean with just a few moist crumbs attached.
Step 7: Top with Chocolate Chips and Peanut Butter Cups
While the brownies are still warm, sprinkle the chocolate chips over the top. Cover with foil and let it rest for 10 minutes so the chips melt into a lush chocolate layer. Finally, spread the melted chocolate gently over the surface and scatter the chopped peanut butter cups across for a delightful finish.
Step 8: Cool and Slice
Allow your Peanut Butter Stuffed Brownies Recipe to cool completely before slicing. This step ensures clean edges and that perfect gooey texture in every piece. Patience here really pays off—it’s worth the wait!
How to Serve Peanut Butter Stuffed Brownies Recipe

Garnishes
Consider adding a dusting of powdered sugar or a drizzle of caramel sauce to elevate the presentation. A sprinkle of flaky sea salt can also intensify the chocolate and peanut butter flavors in a stunning way.
Side Dishes
Serve these brownies with a scoop of vanilla ice cream or a dollop of whipped cream for a classic combo. Fresh berries or slices of banana add a refreshing contrast that cuts through the richness beautifully.
Creative Ways to Present
For special occasions, make mini versions in cupcake liners or skewered brownie bites with alternating peanut butter cups and brownie squares. You can even layer brownie pieces in a dessert trifle with peanut butter mousse and chocolate ganache for a show-stopping treat.
Make Ahead and Storage
Storing Leftovers
Wrap leftover brownies tightly in plastic wrap or store them in an airtight container at room temperature for up to three days. This method keeps them moist and chewy without drying out.
Freezing
If you want to keep these luscious treats longer, freeze uncut brownies wrapped well in plastic and foil for up to two months. Thaw overnight in the refrigerator before serving for best texture.
Reheating
Warm individual brownie portions in the microwave for 10 to 15 seconds to revive that freshly baked gooeyness. Alternatively, reheat slices gently in a low-heat oven for a few minutes for a perfectly melty experience.
FAQs
Can I use peanut butter instead of peanut butter cups?
Absolutely! Swapping peanut butter cups for creamy peanut butter creates a different texture but still delivers fantastic rich peanut flavor. Just be mindful that peanut butter can melt and spread, so you might want to swirl it into the batter carefully.
What type of chocolate chips works best for topping?
Semi-sweet or milk chocolate chips both work brilliantly for topping. Semi-sweet provides a nice contrast to the sweeter peanut butter, while milk chocolate will add extra creaminess. Choose based on your personal preference!
Can I make this recipe gluten-free?
Yes! Simply substitute the all-purpose flour with a gluten-free flour blend designed for baking in a 1:1 ratio. The texture may be slightly different, but the flavor will remain incredible.
How do I know when the brownies are perfectly baked?
Look for a toothpick test with a little sticky crumb attached but no wet batter. The brownies should be set around the edges but still soft in the center to keep that fudgy texture that defines this Peanut Butter Stuffed Brownies Recipe.
Is it better to use canola oil or butter?
Canola oil keeps the brownies more moist and tender with less intense buttery flavor, which balances beautifully with the chocolate and peanut butter. However, if you prefer a richer taste, melted butter can be substituted one-for-one.
Final Thoughts
There is something simply magical about the combination of chocolate and peanut butter wrapped inside a tender brownie, which this Peanut Butter Stuffed Brownies Recipe captures perfectly. Whether you’re baking for a crowd, gifting a sweet treat, or just indulging your own cravings, these brownies deliver joy with every bite. Give this recipe a try, and prepare to fall in love with a dessert that’s as fun to make as it is to eat!
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Peanut Butter Stuffed Brownies Recipe
- Prep Time: 10 minutes
- Cook Time: 25 minutes
- Total Time: 35 minutes
- Yield: 12 servings
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
Deliciously rich and fudgy peanut butter stuffed brownies featuring a layer of gooey peanut butter cups nestled inside, topped with melted chocolate and chopped peanut butter cups for an indulgent treat perfect for chocolate and peanut butter lovers.
Ingredients
Brownie Batter
- 2 oz unsweetened chocolate, melted
- 1/3 cup canola oil
- 2 eggs
- 1 cup sugar
- 3/4 cup flour
- 1/2 tsp baking powder
- 1/2 tsp salt
Toppings and Filling
- 1 cup chocolate chips (semi-sweet or milk chocolate)
- 1 cup chopped peanut butter cups
- 1 bag peanut butter cups, unwrapped (approximately 10–12 cups)
Instructions
- Preheat and prepare pan: Preheat your oven to 350°F (175°C). Prepare an 8-inch baking dish by spraying it with non-stick spray or lining it with foil or parchment paper to ensure easy removal of the brownies.
- Mix chocolate and oil: In a mixing bowl, combine the melted unsweetened chocolate and canola oil, stirring until the mixture is smooth and well incorporated.
- Add eggs and sugar: Stir in the eggs one at a time followed by the sugar until the batter is uniform and slightly glossy.
- Add dry ingredients: Gently fold in the flour, baking powder, and salt until just combined, being careful not to overmix to keep the brownies tender.
- Layer the batter and peanut butter cups: Spread half of the brownie batter evenly into the prepared baking dish. Distribute the unwrapped peanut butter cups evenly over this layer for a gooey center.
- Add remaining batter: Pour the remaining brownie batter over the peanut butter cups and spread it evenly to cover the filling layer completely.
- Bake the brownies: Place the baking dish in the preheated oven and bake for 20 to 25 minutes, or until a toothpick inserted near the center comes out mostly clean with a few moist crumbs.
- Add chocolate chips and melt: Immediately upon removing the brownies from the oven, sprinkle the chocolate chips evenly over the top. Cover the pan loosely with foil and let it sit for 10 minutes to allow the chips to melt.
- Spread melted chocolate and add chopped cups: Use a spatula or knife to spread the melted chocolate across the top of the brownies, then sprinkle with the chopped peanut butter cups for added texture and peanut buttery flavor.
- Cool and serve: Allow the brownies to cool completely in the pan before slicing into 12 servings. This ensures clean cuts and optimal texture.
Notes
- For best results, use fresh peanut butter cups that are not overly soft or melted.
- You can substitute canola oil with vegetable or melted coconut oil if preferred.
- Ensure not to overbake; brownies should remain fudgy inside.
- Cool completely before cutting to avoid crumbling.
- Store leftovers in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.

