Peanut Butter Brownies are a rich, chewy dessert that combines peanut butter’s nutty flavor with chocolate indulgence. These brownies have a soft, cake-like texture with melted peanut butter morsels throughout, making every bite a perfect balance of sweetness and nuttiness. This dessert is perfect for peanut butter lovers topped with a smooth frosting and chopped peanuts. Whether served at parties, potlucks, or as an afternoon treat, these brownies are guaranteed to be a hit.
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Peanut Butter Brownies
Peanut Butter Brownies FAQ
What makes these brownies different from regular brownies?
Unlike traditional chocolate brownies, these have a peanut butter base and include peanut butter morsels instead of cocoa or melted chocolate.
Can I use crunchy peanut butter instead of creamy?
Yes, crunchy peanut butter will add extra texture and bits of peanut throughout the brownies.
What type of chocolate should I use?
Peanut butter morsels are recommended, but you can also use milk or dark chocolate chips for a richer flavor.
How should I store these brownies?
Store them in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.
Can I freeze these brownies?
Yes, wrap them individually in plastic wrap and store in an airtight container in the freezer for up to 3 months.

Food History
Peanut butter has been a favorite ingredient in American baking since the early 1900s, when peanut butter cookies became popular. By the mid-20th century, peanut butter started appearing in brownies and bars, adding a nutty twist to the classic chocolate treat. These Peanut Butter Brownies reflect the evolution of dessert bars, blending creamy peanut butter with a chewy, rich texture that has remained a favorite for decades.
Timeline
- 1900s: Peanut butter becomes widely available in the U.S.
- 1930s-1940s: Peanut butter cookies and bars gain popularity.
- 1950s-1960s: Recipes incorporating peanut butter into brownies appear in cookbooks.
- Today: Peanut Butter Brownies remain a favorite for their rich, nutty flavor.
Recipe Discussion
These Peanut Butter Brownies start with a base of butter and creamy peanut butter, creamed together for a smooth and rich texture. A combination of granulated and brown sugar provides the perfect balance of sweetness, while an egg and vanilla extract enhance the flavor. The dry ingredients—flour, baking powder, and salt—are mixed separately before being gradually combined with the wet ingredients.
Peanut butter morsels are stirred into the batter, adding melty pockets of peanut butter throughout the brownies. After baking, the brownies are topped with a rich frosting and sprinkled with chopped peanuts for extra crunch. The result is a deliciously chewy, nutty dessert with layers of flavor and texture.
Preparation Tips
- Use room-temperature butter for easier mixing.
- Cream the butter and sugar thoroughly to create a light texture.
- Use parchment paper in the pan for easy removal and slicing.
- Do not overmix the batter—stir just until combined for tender brownies.
- For extra richness, add a handful of chocolate chips along with the peanut butter morsels.
- Let the brownies cool completely before frosting to prevent melting.
- Toast the chopped peanuts for a deeper, roasted flavor.
- Refrigerate for a firmer texture or serve warm for a softer, gooier consistency.
- Use a sharp knife to cut even squares and wipe the blade between cuts.
- Try using a chocolate frosting instead of peanut butter frosting for a different flavor twist.
Recommended Kitchen Products
The links below lead to top-rated products on Amazon—if you use our links, we can save more recipes.
- 8×8-Inch Baking Pan: The perfect size for these brownies.
- Mixing Bowls: Great for mixing wet and dry ingredients separately.
- Hand Mixer: Helps cream the butter, peanut butter, and sugar smoothly.
- Parchment Paper: Prevents sticking and makes for easy brownie removal.
- Cooling Rack: Allows brownies to cool evenly before frosting.
- Measuring Cups and Spoons: Ensures precise ingredient measurements.
- Silicone Spatula: Helps spread the batter evenly in the pan.
- Sharp Knife: For cutting clean, even brownie squares.
- Nut Chopper: Speeds up chopping peanuts for the topping.
- Cake Storage Container: Keeps brownies fresh and easy to transport.
Serving Suggestions
- Serve warm with a scoop of vanilla ice cream for a decadent dessert.
- Drizzle with melted chocolate or caramel for extra indulgence.
- Enjoy with a cold glass of milk for a classic combination.
- Add a sprinkle of sea salt on top for a sweet-salty contrast.
- Layer with banana slices for a peanut butter and banana twist.
- Cut into bite-sized squares for a party-friendly treat.
- Pair with coffee or hot cocoa for a cozy snack.
- Serve chilled for a firmer texture or warm for a gooier consistency.
- Use as a base for brownie sundaes with whipped cream and nuts.
- Top with crushed pretzels for a crunchy contrast.
A Nutty and Chewy Treat
Peanut Butter Brownies are the perfect blend of chewy, nutty, and sweet flavors. With their rich peanut butter base, melty peanut butter morsels, and crunchy chopped peanuts on top, they’re a must-try for any peanut butter lover. Whether served as a casual treat or a party dessert, these brownies are guaranteed to satisfy your sweet tooth.
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Peanut Butter Brownies Recipe
Peanut Butter Brownies
Chewy and rich Peanut Butter Brownies made with creamy peanut butter, peanut butter morsels, and a sweet frosting, topped with chopped peanuts. A perfect dessert for peanut butter lovers.
Ingredients
- ½ cup (1 stick) butter
- ⅓ cup creamy peanut butter
- ⅔ cup granulated sugar
- ⅔ cup light brown sugar
- 1 egg
- ½ teaspoon vanilla
- 1 cup all-purpose flour
- 1 teaspoon baking powder
- 1 teaspoon salt
- 1 cup (6 oz) peanut butter morsels
- Frosting
- ⅓ cup chopped peanuts
Instructions
- Preheat oven to 350°F. Grease an 8-inch square baking pan.
- In a small mixing bowl, cream the butter and peanut butter until fluffy.
- Beat in the egg and vanilla extract.
- In a separate bowl, whisk together the flour, baking powder, and salt. Gradually add the dry mixture to the creamed mixture, stirring until combined.
- Stir in the peanut butter morsels.
- Spread the batter evenly into the prepared baking pan.
- Bake for 25 to 30 minutes, or until a toothpick inserted in the center comes out clean.
- Let cool completely on a wire rack.
- Spread with frosting and sprinkle with chopped peanuts.
- Cut into squares and serve.
