Peanut Butter Stuffed Brownies are the ultimate indulgence for chocolate and peanut butter lovers. These fudgy brownies are not just any dessert; they feature a thick layer of creamy peanut butter that takes each bite to the next level. Perfect for parties, family gatherings, or a cozy night in, this treat is sure to impress everyone who tries it.

Jump to:
- Why You’ll Love This Recipe
- Tools and Preparation
- Essential Tools and Equipment
- Importance of Each Tool
- Ingredients
- For the Brownie Base
- How to Make Peanut Butter Stuffed Brownies
- Step 1: Preheat the Oven
- Step 2: Prepare Your Baking Pan
- Step 3: Melt Chocolate and Butter
- Step 4: Mix Wet Ingredients
- Step 5: Combine Dry Ingredients
- Step 6: Assemble Brownies
- Step 7: Bake
- Step 8: Cool and Serve
- How to Serve Peanut Butter Stuffed Brownies
- A La Mode
- With Whipped Cream
- Drizzled with Chocolate Sauce
- Paired with Fresh Berries
- As Part of a Dessert Platter
- S’mores Style
- How to Perfect Peanut Butter Stuffed Brownies
- Best Side Dishes for Peanut Butter Stuffed Brownies
- Common Mistakes to Avoid
- Storage & Reheating Instructions
- Refrigerator Storage
- Freezing Peanut Butter Stuffed Brownies
- Reheating Peanut Butter Stuffed Brownies
- Frequently Asked Questions
- What makes these Peanut Butter Stuffed Brownies so special?
- Can I use crunchy peanut butter instead?
- How do I know when my brownies are done?
- What can I use instead of eggs in this Peanut Butter Stuffed Brownies recipe?
- How should I serve Peanut Butter Stuffed Brownies?
- Final Thoughts
- 📖 Recipe Card
Why You’ll Love This Recipe
- Decadent Flavor: The combination of rich chocolate and smooth peanut butter creates a mouthwatering experience.
- Easy to Make: With simple steps and minimal prep time, even beginner bakers can whip up these brownies.
- Versatile Treat: Serve them warm with ice cream or pack them as a snack for school or work.
- Perfect for Sharing: Cut them into large or small pieces to share at gatherings—everyone will want seconds!
- Satisfying Texture: The fudgy base complements the creamy filling, making each bite a delightful contrast.
Tools and Preparation
Before you start baking these delicious Peanut Butter Stuffed Brownies, gather your tools. Having everything ready will make the process smoother.
Essential Tools and Equipment
- Mixing bowls
- Whisk
- Rubber spatula
- 9×9-inch baking pan
- Parchment paper
Importance of Each Tool
- Mixing bowls: Essential for combining ingredients without mess.
- Whisk: Helps achieve a smooth batter by blending eggs and sugar effectively.
- Rubber spatula: Ideal for scraping down the sides of bowls to ensure no ingredients are wasted.
- 9×9-inch baking pan: Perfect size for evenly baked brownies.

Ingredients
Peanut Butter Stuffed Brownies require the following ingredients:
For the Brownie Base
- 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
How to Make Peanut Butter Stuffed Brownies
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). This ensures that your brownies bake evenly.
Step 2: Prepare Your Baking Pan
Line a 9×9-inch baking pan with parchment paper. This makes removing the brownies easier once they’re baked.
Step 3: Melt Chocolate and Butter
In a microwave-safe bowl, combine the chopped semisweet chocolate and unsalted butter. Microwave in short bursts of 20 seconds, stirring in between, until melted and smooth.
Step 4: Mix Wet Ingredients
In a large mixing bowl, whisk together granulated sugar and eggs until well combined. Stir in the melted chocolate mixture and vanilla extract until smooth.
Step 5: Combine Dry Ingredients
In another bowl, mix together all-purpose flour, cocoa powder, and fine sea salt. Gradually fold this dry mixture into the wet ingredients using a rubber spatula until just combined.
Step 6: Assemble Brownies
Spread half of the brownie batter into the prepared pan. Evenly dollop spoonfuls of creamy peanut butter over this layer. Then spread the remaining brownie batter on top of the peanut butter layer.
Step 7: Bake
Bake in your preheated oven for about 30 minutes or until a toothpick inserted into the center comes out with moist crumbs.
Step 8: Cool and Serve
Allow the brownies to cool completely in the pan before lifting them out using the parchment paper. Cut into squares and enjoy your delicious Peanut Butter Stuffed Brownies!
How to Serve Peanut Butter Stuffed Brownies
Peanut Butter Stuffed Brownies are a delightful treat that can be served in various ways to enhance their rich flavors. Here are some creative ideas to make your dessert experience even more enjoyable.
A La Mode
- Serve warm brownies with a scoop of vanilla ice cream on top. The cold ice cream perfectly balances the warm, fudgy brownie and creamy peanut butter.
With Whipped Cream
- Top your brownies with a generous dollop of whipped cream. This adds a light and airy contrast to the dense texture of the brownies.
Drizzled with Chocolate Sauce
- Add an indulgent touch by drizzling warm chocolate sauce over the brownies. This enhances the chocolate flavor and makes for a visually appealing presentation.
Paired with Fresh Berries
- Serve brownies alongside fresh strawberries or raspberries. The tartness of the berries complements the sweetness of the brownies beautifully.
As Part of a Dessert Platter
- Include these brownies in a dessert platter with assorted treats like cookies and mini cheesecakes for variety at gatherings.
S’mores Style
- Place a toasted marshmallow on top of each brownie for a s’mores twist. Broil briefly for a gooey, melty topping that adds fun texture.
How to Perfect Peanut Butter Stuffed Brownies
To ensure your Peanut Butter Stuffed Brownies turn out perfectly every time, follow these helpful tips.
- Use Room Temperature Ingredients – Allow eggs and butter to come to room temperature before mixing for better incorporation and texture.
- Don’t Overmix – Mix just until ingredients are combined. Overmixing can lead to tough brownies rather than fudgy ones.
- Check Baking Time – Start checking your brownies a few minutes before the recommended baking time. They should be set around the edges but slightly soft in the center.
- Cool Before Cutting – Let brownies cool completely in the pan before cutting them into squares. This helps them hold their shape better.
- Store Properly – Keep leftover brownies in an airtight container at room temperature or refrigerate for longer shelf life while maintaining their moistness.
Best Side Dishes for Peanut Butter Stuffed Brownies
Pairing side dishes with Peanut Butter Stuffed Brownies can elevate your dessert experience. Here are some excellent options to consider.
- Vanilla Ice Cream – A classic pairing that provides creamy contrast and balances the rich flavors of the brownies.
- Fresh Fruit Salad – A light, refreshing salad made from seasonal fruits; it adds brightness and freshness next to decadent brownies.
- Chocolate Chip Cookies – For true dessert lovers, serving cookies alongside enhances the chocolate goodness.
- Milkshake – A thick milkshake can create a fun and indulgent experience that pairs well with rich desserts like these brownies.
- Coffee or Espresso – A strong coffee or espresso can cut through sweetness and provide a satisfying flavor contrast.
- Caramel Sauce – Drizzling warm caramel over the top adds an extra layer of sweetness that pairs beautifully with chocolate and peanut butter flavors.
- Peanut Butter Dip – Serve a small bowl of peanut butter dip alongside for those who want even more peanut buttery goodness!
Common Mistakes to Avoid
To ensure your Peanut Butter Stuffed Brownies turn out perfectly, here are some common mistakes to look out for.
- Using natural peanut butter: Natural peanut butter separates and does not provide the creamy consistency needed for the filling. Stick to conventional creamy peanut butter for the best results.
- Overmixing the batter: Mixing too much can lead to tough brownies. Mix just until the ingredients are combined for a fudgy texture.
- Not measuring ingredients accurately: Baking is a science, so use proper measuring tools. A kitchen scale can help ensure you get precise amounts.
- Skipping the cocoa powder sifting: Sifting cocoa powder prevents clumps in the batter. Always sift it before adding to achieve a smooth mixture.
- Underbaking or overbaking: Keep an eye on your brownies while baking. They should be set at the edges but slightly soft in the center for that perfect fudginess.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container for up to 5 days.
- Cut brownies into squares before storing for easy access.
Freezing Peanut Butter Stuffed Brownies
- Wrap individual brownies tightly in plastic wrap or foil, then place them in a freezer-safe bag.
- They can be frozen for up to 3 months.
Reheating Peanut Butter Stuffed Brownies
- Oven: Preheat to 350°F (175°C), place brownies on a baking sheet, and heat for about 5-10 minutes until warmed through.
- Microwave: Heat one brownie at a time for about 15-20 seconds. Be careful not to overheat, as they can become tough.
- Stovetop: Place brownies in a skillet over low heat with a lid. Heat until warmed, stirring occasionally.
Frequently Asked Questions
What makes these Peanut Butter Stuffed Brownies so special?
These brownies are rich and fudgy with a delicious layer of creamy peanut butter that adds flavor and texture, making them an indulgent treat.
Can I use crunchy peanut butter instead?
Yes! Crunchy peanut butter will add extra texture and nutty flavor, creating an even more delightful experience.
How do I know when my brownies are done?
Brownies are done when the edges look set and the center is still slightly soft. A toothpick inserted should come out with a few moist crumbs but not wet batter.
What can I use instead of eggs in this Peanut Butter Stuffed Brownies recipe?
You can substitute each egg with 1/4 cup unsweetened applesauce or a flax egg (1 tablespoon ground flaxseed mixed with 2.5 tablespoons water) as an egg alternative.
How should I serve Peanut Butter Stuffed Brownies?
Serve them warm with a scoop of vanilla ice cream on top or drizzle melted chocolate over them for added decadence.
Final Thoughts
Peanut Butter Stuffed Brownies are not only incredibly rich and indulgent but also versatile enough for any occasion. You can easily customize them by adding nuts or using different types of chocolate. Try this recipe today and delight your taste buds!
Did You Enjoy Making This Recipe? Please rate this recipe with ⭐⭐⭐⭐⭐ or leave a comment.
📖 Recipe Card
Print
Peanut Butter Stuffed Brownies
- Total Time: 45 minutes
- Yield: Approximately 16 servings 1x
Description
Peanut Butter Stuffed Brownies are a chocolate lover’s dream come true. These decadent brownies feature a rich, fudgy base, generously filled with creamy peanut butter that adds a delightful twist to each bite. Perfect for any occasion—whether it’s a family gathering, birthday party, or cozy night in—these brownies are sure to impress everyone who tries them. With easy-to-follow steps and simple ingredients, even novice bakers can create this indulgent dessert. Serve them warm alongside ice cream or pack them as a sweet snack for school or work; these brownies are versatile enough to satisfy any craving.
Ingredients
- 1 1/4 cups creamy conventional peanut butter
- 10 tablespoons unsalted butter
- 4 ounces semisweet baking chocolate, chopped
- 1 cup granulated sugar
- 2 large eggs plus 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
Instructions
- Preheat your oven to 350°F (175°C) and line a 9×9-inch baking pan with parchment paper.
- Melt the chopped chocolate and butter together in a microwave-safe bowl until smooth.
- In a mixing bowl, whisk together sugar and eggs until combined, then stir in the melted chocolate mixture and vanilla.
- In another bowl, mix flour, cocoa powder, and salt before folding into the wet ingredients until just combined.
- Spread half of the batter into the pan, dollop peanut butter on top, then cover with the remaining batter.
- Bake for about 30 minutes or until set with moist crumbs when tested with a toothpick.
- Allow to cool completely in the pan before cutting into squares.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 brownie
- Calories: 200
- Sugar: 14g
- Sodium: 90mg
- Fat: 12g
- Saturated Fat: 4g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 22g
- Fiber: 2g
- Protein: 5g
- Cholesterol: 35mg





