Peanut Butter Blondies with Chocolate Buttercream
Soft peanut butter bars covered with chocolate frosting— they’re incredibly indulgent!
Chocolate and peanut butter go together like, well, chocolate and peanut butter. It’s a combination that cannot be beat. And these peanut butter blondies with chocolate buttercream cannot be beat!
These blondies are a simple, no-fuss dessert, sure to please just about everyone. They’re perfect for parties, potlucks, and picnics! Just make sure you have a glass of milk nearby, you’ll need it to wash them down.
How to slice brownies and bars evenly
Take these simple steps to get neat, pretty slices of cookie bars or brownies every time.
- Line baking pan with greased foil or parchment paper with overhanging sides to use as handles to easily lift bars out of the pan for slicing.
- Cool baked bars or brownies completely to room temperature before removing them from the pan. For softer bars, chill in the fridge for at least 30 minutes before slicing.
- Slice with a sharp serrated knife, wiping it clean between each cut.
You may enjoy these other peanut butter treats
- 4-Ingredient Peanut Butter Cookies
- Peanut Butter Swirl Brownies
- Peanut Butter and Jam Sweet Rolls
- Peanut Butter Caramel Cupcakes
- Chocolate Peanut Butter Cup Cookies
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This recipe was originally published October 2011.
Peanut Butter Blondies with Chocolate Buttercream
Ingredients
Peanut Butter Blondies:
- 10 tablespoons unsalted butter (166 grams)
- 2 cups light or dark brown sugar (425 grams)
- 1 cup peanut butter (270 grams), smooth or crunchy
- 2 large eggs
- 2 teaspoons vanilla extract
- 1/2 teaspoon salt
- 2 cups all-purpose flour (240 grams)
- 1 teaspoon baking powder
Chocolate Buttercream:
- 6 tablespoons unsalted butter (85 grams), softened to room temperature
- 1/4 teaspoon salt
- 2 cups powdered sugar (227 grams), sifted
- 3-4 tablespoons milk
- 3/4 cup semi-sweet or bittersweet chocolate chips (128 grams), melted
Instructions
To make the blondies:
- Preheat oven to 325°F. Line a 9x13 inch baking pan with parchment paper or grease with nonstick baking spray.
- Melt the butter and sugar together in a medium saucepan over medium heat. Once melted, remove from heat and allow to cool for 5 minutes. Stir in the peanut butter until combined. Add the eggs one at a time, and then the vanilla, stirring until combined.
- In a separate bowl, combine the flour, baking powder, and salt. Add to the wet ingredients and stir until combined. Spread the batter into the prepared baking sheet. Bake for 30-40 minutes, until a toothpick inserted into the center comes out mostly clean.
- Let cool completely before frosting.
To make the buttercream:
- Combine all ingredients in the bowl of a stand mixer fitted with a paddle attachment. Beat on medium speed until smooth, scraping down the mixer bowl a few times as needed.
- Frost blondies with buttercream. Slice into squares and serve.
- To melt chocolate, microwave chocolate in a heat-proof bowl on high in 30 second intervals. Stirring until smooth.
16 Comments on “Peanut Butter Blondies with Chocolate Buttercream”
Excellent blondies,seriously makes me drool..
These look soooo good. Anything with frosting gets my attention and chocolate and peanut butter is my favorite combo. Yum!
These looks so tasty…I'm a sucker for anything with peanut butter.
I love bar treats and these look perfect!
I'm very jealous! First you tease me with photos of these and then you taunt me with claims of being in Hawaii. I have to leave now… 🙂
These look beautiful!
Sues
Oh I've made this before and its deadly delicious. You're right you definitely need a glass of milk. You make it look even better!
Looks so good– I will be making these for my husband SOON!
Yum! these look and sound really good. I will have to make these for my family this week. They are sure to be a hit.
I hope you had a great time in Hawaii and were smart enough to freeze some of these babies before you left. What better treat to come home to than a freezer full of these!
Hope you had a super fun time in Hawaii!
I love you pictures, and you blog! AND this recipe!
Love!
http://lovehomebird.blogspot.com/
it's so funny that you posted these because I just made them last weekend! I am making them again now, but with chocolate chips 🙂
i like your food pictures and want to invite you to try out tastingspot.com. it's for anyone that just wants another place to submit photos and share it will other foodies. It’s still in beta version, but would love for you to start adding some photos and help get it going.
Thanks for sharing this awesome recipe while you are on vacation. 1. I want a blondie now and 2. I want a vacation now. 🙂
YUM! yes PB & chocolate, what could go wrong?!
I just made it by following ur recipe, but I faced a problem:s after I left the sugar and butter to cool down for 5 mins, the sugar became so stiff, then it melted again in the oven! I took it out of the oven but it is still soft but not wet, should I put it in the fridge before serving it?
These blondies were so delicious! I’ll be making them again and again!