If you’re a fan of the ultimate sweet and salty duo, Peanut Butter Chocolate Swirl Blondies are going to become your new obsession. These heavenly blondies capture the soul-soothing flavors of classic peanut butter and chocolate in every chewy, decadent bite. Each square is a celebration of creamy peanut butter, rich chocolate ribbons, and a buttery blondie base that’ll have you reaching for seconds before you know it. Perfect for bake sales, picnics, or just a well-deserved treat, these blondies deliver that crave-worthy swirl—making them a dessert that’s as beautiful as it is delicious.
Ingredients You’ll Need
The ingredient list for Peanut Butter Chocolate Swirl Blondies is short and sweet—just a handful of basics can create dessert magic. Every component has an important role, from building a tender crumb to adding those irresistible swirls and flecks. Let’s see what you’ll need (and why they matter):
- All-purpose flour: This is your backbone for structure, keeping the blondies sturdy yet soft.
- Baking powder: Lifts the batter just enough for a tender, dense texture.
- Salt: A tiny pinch, but it boosts all the flavors and balances sweetness.
- Unsalted butter, melted: Adds moisture and that signature rich blondie flavor.
- Light brown sugar, packed: Gives caramel-like depth, chewiness, and gorgeous color.
- Large egg: Binds everything together for perfect bars every time.
- Vanilla extract: Brings out the best in both chocolate and peanut butter.
- Creamy peanut butter: The star swirl—make sure to use the creamy variety for the smoothest ribbons.
- Semisweet chocolate chips, melted: For a rich chocolate swirl that cuts the sweetness just right.
- Peanut butter chips (optional): Scatter on top for pops of peanutty sweetness and a fun finish.
How to Make Peanut Butter Chocolate Swirl Blondies
Step 1: Prep Your Pan and Oven
Start by preheating your oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper, leaving an overhang for easy lifting. This little bit of prep is worth it—it guarantees you’ll get those picture-perfect blondie squares out of the pan without a fuss.
Step 2: Mix the Dry Ingredients
In a small bowl, whisk together the all-purpose flour, baking powder, and salt. Giving these a quick whisk ensures even distribution and helps your blondies bake up with the ideal texture throughout—no lumps and no surprises.
Step 3: Blend the Wet Ingredients
In a large mixing bowl, combine the melted butter and packed brown sugar. Whisk them together until glossy and smooth, then add in the egg and vanilla extract. This creates the luscious, caramel-scented base that sets Peanut Butter Chocolate Swirl Blondies apart.
Step 4: Combine Wet and Dry Mixtures
Gently stir your dry ingredients into the wet mixture, folding just until you see no more streaks of flour. This helps keep your blondies tender—over-mixing can make them tough, so go easy here.
Step 5: Layer and Swirl
Spread about half the blondie batter evenly into your prepared pan—a spatula or the back of a spoon works well. Warm your creamy peanut butter just enough to make it pourable, then dollop generous spoonfuls over the batter. Drizzle the melted chocolate on top and, using a knife, swirl everything together to create delicious ribbons. Add the remaining batter in spoonfuls, spread lightly, and give a final swirl for that signature marbled effect. Top with peanut butter chips if you love extra pops of peanuty sweetness.
Step 6: Bake to Perfection
Slide the pan into the oven and bake for 25 to 30 minutes. You’re looking for golden edges and a set center—a toothpick should come out with just a few moist crumbs. Resist the urge to overbake; a little gooeyness is what makes these bars unforgettable.
Step 7: Cool and Slice
Let your Peanut Butter Chocolate Swirl Blondies cool completely before slicing. This patience pays off—cooling helps the bars firm up for perfect, clean slices and lets the flavors develop fully. Cut into 16 squares, and try not to eat them all at once!
How to Serve Peanut Butter Chocolate Swirl Blondies
Garnishes
A sprinkle of flaky sea salt right after baking instantly elevates these blondies, highlighting the swirl and balancing every bite. For a finishing flourish, drizzle a little more warm melted chocolate or an extra swirl of peanut butter on top before serving. Even a dusting of powdered sugar adds a gorgeous, bakery-style touch that makes each square feel special.
Side Dishes
Pair Peanut Butter Chocolate Swirl Blondies with a cold glass of milk or a scoop of vanilla ice cream for pure dessert bliss. If you’re feeling fancy, serve alongside cut strawberries or banana slices for a fresh, fruity contrast. They also pair beautifully with strong coffee or an iced latte for that grown-up treat vibe.
Creative Ways to Present
Turn your blondies into show-stopping dessert plates by stacking two with a scoop of ice cream in between for a decadent sandwich. For parties, cut them into smaller bites and arrange on a platter with toothpicks. Or wrap individual squares in parchment and twine for a charming homemade gift everyone will be excited to receive.
Make Ahead and Storage
Storing Leftovers
Peanut Butter Chocolate Swirl Blondies keep beautifully at room temperature. Place extra squares in an airtight container—layered with parchment—for up to three days. They stay chewy and flavorful, making them an ideal grab-and-go snack or lunchbox treat.
Freezing
Want to bake ahead? Let the blondies cool completely, then wrap tightly in plastic wrap and foil before freezing for up to two months. You can freeze the whole slab or cut squares first for easy portioning. Thaw overnight in the fridge or on the counter, and they taste just as fresh.
Reheating
For that just-baked magic, pop a blondie in the microwave for 8 to 10 seconds. The chocolate will get melty and the peanut butter swirl extra gooey—it’s like biting into a warm, oven-fresh treat all over again. If you’re reheating several, arrange them on a baking sheet and warm in a low oven for a few minutes.
FAQs
Can I use crunchy peanut butter instead of creamy?
You absolutely can! Crunchy peanut butter will add extra texture and little nutty surprises throughout your Peanut Butter Chocolate Swirl Blondies. The swirls will be a bit rustic, but the flavor and texture remain fantastic.
What if I don’t have peanut butter chips?
No worries—they’re completely optional. The blondies are still bursting with peanut butter flavor from the swirl. If you’re craving an extra something, try adding white chocolate chips or even extra chocolate chips on top.
How do I know when my blondies are done baking?
Look for golden edges and a center that’s set but still soft. A toothpick inserted in the center should come out with just a few moist crumbs, not wet batter. Since blondies keep baking a bit after you take them out, err on the side of slightly under-baked for super moist results.
Can I double this recipe for a larger batch?
Definitely! Double all the ingredients and bake in a 9×13-inch pan. Start checking for doneness around the 28-minute mark—depending on your oven, it could take a little longer. This is perfect for parties or big gatherings where everyone will want seconds.
How do I keep my blondies chewy rather than cakey?
The secret is not to over-mix your batter once you add the flour. Also, be careful not to overbake. A toothpick with a few moist crumbs is your best indicator for that perfect chewy Peanut Butter Chocolate Swirl Blondie texture.
Final Thoughts
There’s something magical about that first bite of Peanut Butter Chocolate Swirl Blondies—where rich chocolate, creamy peanut butter, and buttery blondie meet in a perfect harmony. I truly hope you’ll treat yourself (and maybe your favorite people) to a batch soon. Once you taste how easy and fun these are, they’ll become your go-to dessert for every sweet occasion!
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Peanut Butter Chocolate Swirl Blondies Recipe
- Total Time: 45 minutes
- Yield: 16 blondies 1x
- Diet: Vegetarian
Description
Indulge in the perfect marriage of peanut butter and chocolate with these irresistible Peanut Butter Chocolate Swirl Blondies. These soft and chewy blondies are swirled with creamy peanut butter and rich chocolate for a decadent treat that’s sure to satisfy any sweet tooth.
Ingredients
Dry Ingredients:
- 1 cup all-purpose flour
- 1/2 teaspoon baking powder
- 1/4 teaspoon salt
Wet Ingredients:
- 1/2 cup unsalted butter, melted
- 1 cup light brown sugar, packed
- 1 large egg
- 1 teaspoon vanilla extract
- 1/2 cup creamy peanut butter
- 1/2 cup semisweet chocolate chips, melted
- 1/4 cup peanut butter chips (optional)
Instructions
- Preheat oven: Preheat oven to 350°F (175°C) and prepare an 8×8-inch baking pan with parchment paper.
- Mix dry ingredients: In a small bowl, whisk together flour, baking powder, and salt.
- Combine wet ingredients: In a larger bowl, mix melted butter and brown sugar, then add the egg and vanilla extract. Stir in dry ingredients until just combined.
- Layer batter: Spread half of the batter in the pan. Dollop and swirl peanut butter, then pour and swirl melted chocolate. Add remaining batter and swirl for marbling. Sprinkle with peanut butter chips if desired.
- Bake: Bake for 25-30 minutes until a toothpick comes out with a few moist crumbs. Cool before slicing.
Notes
- For a richer flavor, use dark chocolate instead of semisweet.
- Blondies can be stored in an airtight container at room temperature for up to 3 days or frozen for up to 2 months.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 blondie
- Calories: 210
- Sugar: 17 g
- Sodium: 90 mg
- Fat: 12 g
- Saturated Fat: 6 g
- Unsaturated Fat: 5 g
- Trans Fat: 0 g
- Carbohydrates: 24 g
- Fiber: 1 g
- Protein: 3 g
- Cholesterol: 25 mg
