These Peanut Butter Blondies are a delightful treat that combines the rich flavor of peanut butter with sweet chocolate and colorful Reese’s Pieces. Perfect for parties, family gatherings, or a simple dessert at home, these blondies are sure to impress. Their soft and chewy texture makes them irresistible, while the ease of preparation means you can whip them up quickly without any fuss.
Why You’ll Love This Recipe
- Quick and Easy: This recipe requires just one bowl and no mixer, making cleanup a breeze.
- Delicious Flavor: The combination of peanut butter, chocolate chips, and Reese’s Pieces creates a sweet and satisfying treat.
- Versatile Dessert: Perfect for any occasion—from birthday parties to cozy nights in—these blondies will be a hit.
- Customizable: Feel free to swap out the mix-ins for your favorite candies or nuts if desired.
- Crowd-Pleaser: With 15 large blondies in one batch, there’s plenty to share with friends and family.
Tools and Preparation
To make these delicious peanut butter blondies, you’ll need some essential tools. Having the right equipment will ensure your baking experience is smooth and enjoyable.
Essential Tools and Equipment
- Baking pan (9×13 inches)
- Parchment paper
- Microwave-safe mixing bowl
- Whisk
- Spatula or spoon
Importance of Each Tool
- Baking pan: A 9×13 inch pan provides the perfect size for even baking and easy slicing.
- Parchment paper: Lining the pan helps prevent sticking, making it easier to lift out the blondies.
- Microwave-safe mixing bowl: Ideal for melting ingredients quickly without needing extra pots or pans.
- Whisk: Essential for combining ingredients smoothly without clumps.

Ingredients
To create these tasty 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
Follow these simple steps to prepare your delicious peanut butter blondies.
Step 1: Preheat the Oven
Preheat your oven to 350F (180C) degrees. This ensures that your blondies bake evenly.
Step 2: Prepare Your Pan
Line a 9×13 inch pan with parchment paper, leaving an overhang on the sides. Alternatively, lightly grease the pan for easy removal later.
Step 3: Melt Butter and Peanut Butter
In a large microwave-safe bowl, melt together the unsalted butter and peanut butter. Heat until almost melted, then stir together until smooth.
Step 4: Mix in Sugar and Eggs
Whisk in the light brown sugar until well combined. Add in the eggs and vanilla extract. Continue whisking until there are no visible pieces of egg.
Step 5: Combine Dry Ingredients
Gently fold in all-purpose flour and salt into the mixture. Stop mixing when you can no longer see streaks or lumps of flour.
Step 6: Add Mix-Ins
Fold in the Reese’s Pieces and chocolate chips gently so they are evenly distributed throughout the batter.
Step 7: Transfer Batter to Pan
Spoon or pour the batter into your prepared pan. Spread it out evenly using a spatula or spoon to smooth out the top.
Step 8: Bake
Place in your preheated oven and bake for about 30 minutes. Check by inserting a toothpick; it should come out clean or with only a few damp crumbs. If you prefer less gooey blondies, bake for an additional 5 minutes.
Step 9: Cool and Slice
Allow the bars to cool in the pan. When ready to slice, use the parchment overhang to lift them out onto a cutting board. Cut with a thin sharp knife for clean slices. Let cool completely before serving; about 2½ hours is ideal for melty chocolate chips!
Enjoy your homemade 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 prefer them warm or cold, there are many serving suggestions to enhance their flavor and presentation.
With a Scoop of Ice Cream
- Vanilla ice cream complements the rich peanut butter flavor perfectly.
- Chocolate ice cream adds an extra layer of indulgence.
Drizzled with Chocolate Sauce
- A warm chocolate sauce can create a beautiful contrast with the soft blondies.
- Use homemade or store-bought sauce for convenience.
Topped with Whipped Cream
- Light whipped cream provides a creamy texture that balances the sweetness.
- Consider adding a sprinkle of cocoa powder for an extra touch.
Served with Fresh Fruit
- Slices of banana pair well with peanut butter’s nutty taste.
- Berries add a refreshing tartness that cuts through the richness.
As Part of a Dessert Platter
- Include other treats like cookies and brownies for variety.
- Arrange the blondies in bite-sized squares for easy sharing.
How to Perfect Peanut Butter Blondies
To achieve the ideal texture and flavor in your peanut butter blondies, follow these helpful tips.
- Use room temperature ingredients – This helps in creating a smooth batter and ensures even mixing.
- Don’t overmix – Mix until just combined to keep your blondies chewy rather than dense.
- Adjust baking time – For softer bars, bake closer to 30 minutes; for firmer ones, let them go longer.
- Cool completely before slicing – Allowing them to cool helps maintain their shape and texture when cut.
- Experiment with mix-ins – Try adding nuts or different types of chocolate chips for added flavor.
Best Side Dishes for Peanut Butter Blondies
Pairing your peanut butter blondies with complementary side dishes can elevate your dessert experience. Here are some great options:
- Fresh Fruit Salad – A mix of seasonal fruits adds freshness and balances sweetness.
- Chocolate-Covered Strawberries – The combination of chocolate and fruit is always a winner.
- Yogurt Parfait – Layer yogurt, granola, and fruits for a delightful contrast in textures.
- Nutty Granola Bars – These add crunch and can be made ahead as a healthy snack option.
- Caramel Sauce – Drizzle this over the blondies for an extra sweet touch that pairs beautifully.
- Coffee or Tea – A warm beverage complements the flavors of peanut butter nicely while enhancing the overall experience.
- Milkshake – A creamy shake can be an indulgent addition, especially when made with chocolate or vanilla flavors.
Common Mistakes to Avoid
When making Peanut Butter Blondies, avoid these common pitfalls for the best results.
- Using cold ingredients: Cold butter and eggs can lead to uneven mixing. Always use room temperature ingredients for a smoother batter.
- Overmixing the batter: Mixing too much can make the blondies tough. Combine until just incorporated to keep them soft and chewy.
- Not measuring ingredients accurately: Inaccurate measurements can alter the texture and taste. Use a kitchen scale or proper measuring cups for best results.
- Skipping the parchment paper: Not lining your pan can lead to sticking. Always line your baking dish for easy removal and cleanup.
- Underbaking or overbaking: Keeping an eye on baking time is crucial. Bake until just set; they will continue to firm up as they cool.
Refrigerator Storage
- Store in an airtight container for up to 5 days.
- Keep them in a single layer to prevent sticking.
Freezing Peanut Butter Blondies
- Wrap each blondie individually in plastic wrap or foil.
- Place wrapped blondies in a freezer-safe bag or container; they can be frozen for up to 3 months.
Reheating Peanut Butter Blondies
- Oven: Preheat to 350°F (175°C) and bake for about 5-10 minutes until warmed through.
- Microwave: Heat one blondie at a time on medium power for 15-20 seconds until warm.
- Stovetop: Place a blondie in a skillet over low heat, covering with a lid for 2-3 minutes until warmed.
Frequently Asked Questions
What are Peanut Butter Blondies?
Peanut Butter Blondies are soft, chewy bars made with peanut butter, sugar, and flour, often enhanced with chocolate chips and candy pieces.
Can I customize my Peanut Butter Blondies?
Absolutely! You can add nuts, different types of chocolate chips, or even swap out the Reese’s Pieces for other candies or dried fruits.
How do I know when my Peanut Butter Blondies are done?
They are done when the top looks set and a toothpick inserted comes out clean or with a few damp crumbs. Adjust baking time based on your preferred texture.
Are Peanut Butter Blondies gluten-free?
To make gluten-free Peanut Butter Blondies, substitute all-purpose flour with a gluten-free flour blend.
Final Thoughts
These Peanut Butter Blondies are not only easy to make but also incredibly versatile and delicious. With their rich peanut butter flavor and crunchy bits of chocolate, they’re sure to satisfy any sweet tooth. Feel free to customize them with your favorite mix-ins!
Peanut Butter Blondies
Indulge in the delightful world of Peanut Butter Blondies! These soft and chewy bars are a perfect fusion of rich peanut butter and sweet chocolate, making them an irresistible treat for any occasion. Whether you’re hosting a party or simply craving something sweet at home, these blondies are quick to prepare and sure to impress. With their customizable mix-ins like chocolate chips and colorful candy pieces, you can easily tailor this recipe to suit your taste. Plus, they require just one bowl for mixing, which means minimal cleanup. Enjoy these delectable blondies warm or cold – either way, they’re a crowd-pleaser you’ll want to make again and again.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: Approximately 15 servings 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
- 2/3 cup unsalted butter
- 3/4 cup peanut butter
- 2 cups light brown sugar
- 2 teaspoons vanilla extract
- 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 line a 9×13 inch pan with parchment paper.
- In a microwave-safe bowl, melt unsalted butter and peanut butter together until smooth.
- Whisk in light brown sugar, then add eggs and vanilla until fully combined.
- Fold in flour and salt gently until just incorporated.
- Add in Reese's Pieces and chocolate chips, mixing carefully.
- Pour batter into the prepared pan, smoothing the top evenly.
- Bake for 30 minutes or until a toothpick comes out clean; adjust time for desired texture.
- Cool completely before slicing into squares.
Nutrition
- Serving Size: 1 blondie (50g)
- Calories: 200
- Sugar: 14g
- Sodium: 90mg
- Fat: 10g
- Saturated Fat: 4g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 26g
- Fiber: 1g
- Protein: 4g
- Cholesterol: 35mg