Skip to Content

Peanut Butter Streusel Brownies Recipe

Possibly my most favorite brownie recipe to date. I’m not saying that these Peanut Butter Streusel Brownies are my ‘best’ brownie recipe to date because I’ve got a lot of really fantastic ones, but I do think these are a personal favorite.

I’ve just never seen anything like these, and the unique twist on these Peanut Butter Streusel Brownies was an instant homerun for me!

Peanut Butter Streusel Brownies Photo

I used my favorite basic brownie recipe – it’s the same brownie batter that I use in these Nutella Brownies with Nutella Buttercream, and these Ultimate Fudgy S’mores Brownies.

Why does that particular brownie recipe rock? Because they’re super thick, mega moist and fudgy, and supremely chocolately.

Peanut Butter Streusel Brownies Picture

They’re as rich as a brownie can get. Taste and texture aside, they’re also a breeze to whip up.

You don’t need a mixer, and you can definitely get these put together in just one bowl. Minimal work, minimal clean-up, and maximum decadence.

Peanut Butter Streusel Brownies Image

I’ve tried a lot of brownie recipes, and I come back to this one over and over again. My brownie recipe is foolproof – anyone can make them, and they turn out perfectly every time!

And it’s also extremely adaptable.

For these Peanut Butter Streusel Brownies, I just prepared my staple brownie batter, and swirled a good portion of melted creamy peanut butter on top. Over the peanut butter swirl, I piled on a heap of peanut butter streusel.

Peanut butter streusel is life-changing. Once I discovered it, I truly knew that my life was never going to be quite the same.

Peanut Butter Streusel Brownies Pic

Streusel usually has the same basic ingredients, like butter, brown sugar, granulated sugar, and flour. Instead of using all butter, I substituted most of the butter for peanut butter!

That equals: peanut butter streusel. YAY!

It turns out exactly how you want streusel to be – crispy on the edges, but the little morsels melt in your mouth.

File 1 Peanut Butter Streusel Brownies

In this case though, they taste like peanut butter. Isn’t that wonderful?

You’ll adore these Peanut Butter Streusel Brownies. The most perfect, rich, moist, insanely chocolatey brownies, tall and thick, swirled with melted peanut butter, and better still, covered in sweet, crunchy, melt-in-your-mouth peanut butter streusel!

You’ve probably never seen another brownie recipe like this, and now that you’ve found it, you’ll never look back.

Peanut Butter Streusel Brownies Photo

Peanut Butter Streusel Brownies Recipe

Sarah Grossett
Peanut Butter Streusel Brownies combine all the best baked things. Chocolatey brownies plus streusel topping? We’re in.
No ratings yet
Prep Time 25 minutes
Cook Time 45 minutes
Total Time 1 hour 10 minutes
Servings 25 1 brownie
Calories 238 kcal


  • 1 Butter melted
  • 2 Granulated Sugar
  • 2 Pure Vanilla Extract
  • 0.25 Salt
  • 4 Egg
  • 1.25 Unsweetened Cocoa Powder
  • 0.5 All-Purpose Flour
  • 0.5 Creamy Peanut Butter melted
  • 0.5 All-Purpose Flour
  • 2 Brown Sugar
  • 2 Granulated Sugar
  • 0.33 Creamy Peanut Butter melted
  • 2 Butter melted


  • Preheat the oven to 350°F.
  • In a large bowl, whisk together melted butter, sugar, vanilla, and salt.
  • Add the eggs, one at a time, whisking well after each addition.
  • Whisk in the cocoa powder and flour, mixing until just blended.
  • Line a 9-inch square pan with foil, hanging it over the edges.
  • Spray foil with non-stick spray.
  • Spread batter evenly into the prepared pan.
  • Drizzle the peanut butter over the brownie batter and use a knife to lightly swirl.
  • In a small bowl, stir together flour, brown sugar, granulated sugar, peanut butter, and butter, until blended and crumbly.
  • Sprinkle the streusel evenly over the brownie batter.
  • Bake for 40-45 minutes, or until a toothpick inserted near the center comes out mostly clean, with a few moist crumbs.
  • Remove to a wire rack to cool completely.
  • Cut into bars.


Calories: 238kcalCarbohydrates: 23.38gProtein: 4.4gFat: 14.2gSaturated Fat: 5.54gSodium: 24.33mgFiber: 0.95gSugar: 16.6g
Keyword Baked, Baking, Bar Desserts, Brownies, Chocolate, Desserts, Easy, Peanut Butter
Tried this recipe?Let us know how it was!
Recipe Rating