These Peanut Butter Blondies are an irresistible treat that combines soft, chewy texture with a rich peanut butter flavor. Enhanced by the delightful crunch of Reese’s Pieces and chocolate chips, these blondies make for a perfect dessert for parties, family gatherings, or simply as a sweet indulgence after dinner. Their simplicity shines through with a one-bowl approach, making them easy to whip up without any fuss.
Why You’ll Love This Recipe
- Quick and Easy: This recipe requires minimal effort with just one bowl and no mixer needed.
- Deliciously Flavorful: The combination of peanut butter, chocolate chips, and Reese’s Pieces creates a taste sensation that everyone will love.
- Versatile Treat: Perfect for any occasion—birthdays, picnics, or just an afternoon snack.
- Customizable Add-ins: Feel free to substitute or add your favorite candies or nuts to make it your own.
- Great for Sharing: With 15 generous servings, these blondies are ideal for sharing with friends and family.
Tools and Preparation
To create the best Peanut Butter Blondies, you’ll need some essential tools. Having the right equipment makes baking more efficient and enjoyable.
Essential Tools and Equipment
- 9×13 inch baking pan
- Parchment paper or cooking spray
- Microwave-safe bowl
- Whisk
- Mixing spoon
- Sharp knife
Importance of Each Tool
- Baking Pan: A good quality pan ensures even baking, helping your blondies cook perfectly throughout.
- Whisk: This tool helps to mix ingredients smoothly, ensuring that the batter is well combined without lumps.
- Microwave-safe Bowl: Ideal for quickly melting ingredients like butter and peanut butter without the risk of burning.

Ingredients
To make these delicious Peanut Butter Blondies, gather the following ingredients:
For the Blondies
- 2/3 cup unsalted butter (170 grams)
- 3/4 cup peanut butter (about 270 grams)
- 2 cups light brown sugar (420 grams)
- 2 teaspoons vanilla
- 3 large eggs
- 2 cups all-purpose flour (250 grams)
- 1/4 teaspoon salt
- 3/4 cup Reese’s Pieces (about 140 grams)
- 3/4 cup chocolate chips (about 120 grams)
How to Make Peanut Butter Blondies
Step 1: Preheat the Oven
Preheat your oven to 350°F (180°C). This step ensures that your blondies bake evenly.
Step 2: Prepare Your Pan
Line a 9×13 inch pan with parchment paper, allowing some overhang on the sides for easy removal later. Alternatively, lightly grease the pan.
Step 3: Melt Butter and Peanut Butter
In a large microwave-safe bowl, melt together the unsalted butter and peanut butter. Stir until smooth once nearly melted.
Step 4: Mix in Sugar and Eggs
Whisk in the light brown sugar, followed by the eggs, and vanilla. Ensure there are no traces of egg visible in the mixture.
Step 5: Fold in Dry Ingredients
Gently fold in the all-purpose flour and salt. Stop mixing when no streaks or lumps of flour remain.
Step 6: Add Candies
Fold in both the Reese’s Pieces and chocolate chips, distributing them evenly throughout the batter.
Step 7: Pour into Pan
Spoon or pour the batter into your prepared pan. Smooth out the top with a spatula for even baking.
Step 8: Bake
Bake in your preheated oven for about 30 minutes. Check if done by inserting a toothpick; it should come out clean or with a few damp crumbs. For less gooey bars, bake for an additional five minutes.
Step 9: Cool and Slice
Allow to cool completely in the pan before lifting out using parchment overhang. Slice into squares using a sharp knife. For best results, cool for at least two hours before slicing. Enjoy your soft and chewy Peanut Butter Blondies!
How to Serve Peanut Butter Blondies
Peanut butter blondies are a delightful treat that can be enjoyed in various ways. Whether you’re hosting a gathering or simply indulging yourself, these serving suggestions will elevate your dessert experience.
With Ice Cream
- Vanilla Ice Cream: A classic pairing that complements the rich peanut butter flavor.
- Chocolate Ice Cream: For chocolate lovers, this combination adds an extra layer of indulgence.
Topped with Whipped Cream
- Homemade Whipped Cream: Light and airy, it balances the dense blondies perfectly.
- Flavored Whipped Cream: Add a hint of vanilla or almond extract for a unique twist.
As a Dessert Bar
- Create a Dessert Station: Offer toppings like nuts, sprinkles, and additional chocolate chips for customization.
- Serve with Fresh Fruit: Fresh strawberries or bananas provide a refreshing contrast to the sweet blondies.
Dusted with Powdered Sugar
- Simple Presentation: A light dusting of powdered sugar enhances the visual appeal and adds sweetness without overwhelming flavors.
How to Perfect Peanut Butter Blondies
To achieve the ultimate peanut butter blondies, keep these tips in mind. They will help you create a batch that is perfectly chewy and packed with flavor.
- Use Room Temperature Ingredients: Ensuring your eggs and butter are at room temperature will help them combine more smoothly.
- Don’t Overmix the Batter: Gently fold ingredients together to maintain a tender texture; overmixing can lead to dense blondies.
- Check for Doneness Early: Start checking your blondies around 25 minutes to avoid overbaking and maintain that gooey center.
- Let Them Cool Completely: Allowing the blondies to cool helps them set properly, making slicing easier and cleaner.
Best Side Dishes for Peanut Butter Blondies
Pairing side dishes with peanut butter blondies can enhance your dessert experience. Here are some delicious options to consider.
- Fresh Fruit Salad: A mix of seasonal fruits adds brightness and freshness to balance the sweetness.
- Yogurt Parfait: Layer yogurt with granola and berries for a creamy, crunchy contrast.
- Chocolate Dipping Sauce: Melted chocolate is perfect for drizzling over each blondie for extra indulgence.
- Caramel Sauce: Drizzle warm caramel sauce on top for a rich, decadent touch that complements the peanut butter flavor.
- Nut Mix: A bowl of mixed nuts offers crunch and savory notes that pair well with sweet desserts.
- Coffee or Tea: A warm cup of coffee or herbal tea enhances the flavors while providing a comforting beverage option.
Common Mistakes to Avoid
Making peanut butter blondies can be simple, but there are common pitfalls to watch out for.
- Not measuring ingredients correctly – Be precise with your measurements, especially for flour and sugar. Using too much or too little can affect the texture.
- Overmixing the batter – Mix just until combined to keep your blondies soft and chewy. Overmixing can lead to a dense texture.
- Skipping the cooling time – Allowing the blondies to cool before slicing helps them set properly. Cutting them too soon can make them fall apart.
- Using a dark pan – Dark pans can lead to over-browning. Opt for light-colored pans for even baking.
- Ignoring bake time – Keep an eye on your blondies as they bake. If you prefer them less gooey, extend the baking time slightly.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container in the fridge for up to 1 week.
- Keep layers separated with parchment paper to prevent sticking.
Freezing Peanut Butter Blondies
- Wrap individually in plastic wrap and place in a freezer-safe container.
- Freeze for up to 3 months for best quality.
Reheating Peanut Butter Blondies
- Oven – Preheat to 350F (180C) and warm for about 5-10 minutes until heated through.
- Microwave – Heat individual servings in 15-30 second intervals until warm.
- Stovetop – Place in a skillet over low heat, covering with a lid until warm throughout.
Frequently Asked Questions
Here are some common questions about making peanut butter blondies.
Can I use natural peanut butter for Peanut Butter Blondies?
Yes, but it may alter the texture slightly. Natural peanut butter can be more runny; consider refrigerating it before use.
How do I know when my Peanut Butter Blondies are done?
The edges should be set and slightly golden, while the center will look soft. A toothpick inserted should come out with a few moist crumbs.
Can I substitute ingredients in Peanut Butter Blondies?
Absolutely! You can swap out the chocolate chips or Reese’s Pieces with nuts or other candies based on your preference.
What if I don’t have brown sugar?
You can substitute it with granulated sugar mixed with a bit of molasses, or use coconut sugar as an alternative.
Final Thoughts
These peanut butter blondies are not only delicious but also adaptable. You can easily customize them by adding different mix-ins like nuts or dried fruits. With their soft and chewy texture, they make a perfect treat for any occasion—give them a try!
Peanut Butter Blondies
- Total Time: 45 minutes
- Yield: Approximately 15 servings 1x
Description
Indulge in the deliciously soft and chewy Peanut Butter Blondies, a delightful dessert that merges the rich flavor of peanut butter with crunchy chocolate chips and Reese’s Pieces. These easy-to-make blondies come together in just one bowl, making them perfect for any occasion, from family gatherings to casual snacking. With a simple preparation process and customizable add-ins, you can create your own unique version. Plus, with 15 generous servings, they are an ideal treat for sharing with friends and loved ones.
Ingredients
- 2/3 cup unsalted butter
- 3/4 cup peanut butter
- 2 cups light brown sugar
- 2 teaspoons vanilla
- 3 large eggs
- 2 cups all-purpose flour
- 1/4 teaspoon salt
- 3/4 cup Reese's Pieces
- 3/4 cup chocolate chips
Instructions
- Preheat your oven to 350°F (180°C) and prepare a 9×13 inch baking pan by lining it with parchment paper.
- In a microwave-safe bowl, melt together unsalted butter and peanut butter until smooth.
- Whisk in light brown sugar, followed by eggs and vanilla until well combined.
- Gently fold in all-purpose flour and salt until no streaks remain.
- Add Reese's Pieces and chocolate chips, stirring to distribute evenly.
- Pour the batter into the prepared pan and smooth out the top.
- Bake for about 30 minutes or until a toothpick comes out clean; adjust baking time if you prefer less gooey bars.
- Allow to cool completely before slicing into squares.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 182
- Sugar: 14g
- Sodium: 90mg
- Fat: 8g
- Saturated Fat: 4g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 27g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 33mg




