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Stack of Peanut Butter Truffle Brownies on a white dessert plate

Peanut Butter Truffle Brownies

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These Peanut Butter Truffle Brownies combine that irresistible pairing of chocolate and peanut butter in a most delicious, irresistible way! Brownies are topped with a peanut butter truffle filling then finished off with a silky ganache topping.

You can put those Reese’s Peanut Butter Cups back in the bag for now and indulge in these marvelous peanut butter brownies instead!

Peanut Butter Truffle Brownies on a white ceramic tray

Peanut Butter Truffle Brownies

I first made these peanut butter brownies back in 2011 for a weekend reunion with some fabulous friends from college. These were those sorority sisters with whom I ate bags of chips and M & M’s. We also were known to make nachos in the sorority microwave after coming home late from the bars. I knew they’d be perfect for our tailgate.

Cut into squares and packed up in a cooler, these peanut butter truffle brownies made their way across three states to a homecoming football game at my alma mater. I paid about as much attention to the game that day as I did in college. The hubby is still shocked I went to the Rose Bowl and Peach Bowl back in the day, too.

Stack of Peanut Butter Truffle Brownies on a white dessert plate

Tips for Making These Peanut Butter Brownies

As with every recipe, read through the instructions before starting to familiarize yourself with the procedure. Also double check that you have all the ingredients on hand.

  • Usually I pull out the butter and eggs before I start baking. Since part of the butter is melted in the microwave, only the butter for the filling and the eggs need to be brought to  room temperature.
  • For both the brownie batter and the peanut butter filling, I use an offset spatula to spread each layer out evenly. This makes for a prettier presentation.
  • The first time I made this recipe, I used a bag of semi-sweet chocolate chips for the ganache topping. Since then, I’ve found I like the way Ghirardelli chocolate bars melt better than chocolate chips.
  • Feel free to use 12 ounces of either chocolate chips or chocolate bars. If you use the chocolate chips, you may need to add 2 tablespoons of cream to the mixture.
  • As with most of my brownies and bars, they cut best after some time in the refrigerator. Use a warm, dry knife to easily slide through the ganache topping and wipe the knife off between cuts.
  • For more details, check out my post on How to Cut Perfect Cookie Bars.

More Peanut Butter Desserts You’ll Love:

Better Than Reese’s Peanut Butter Bars, Stuffed Peanut Butter Rice Krispie Treats, Frozen Chocolate Peanut Butter Pie, Tagalong Cookie Bars, and No-Bake Chocolate Peanut Butter Cookies are some other ways I get my chocolate peanut butter fix!

I spotted many decadent versions of these peanut butter brownies across the Internet, and I’ve pieced together a few recipes and added my own twist.  My fabulous friends from college adored these layered peanut butter brownies—they were inhaled!!

These little gems are outrageously rich and delicious. If you like Reese’s, you’ll have to try a batch of these peanut butter truffle brownies.

Note: These brownies were first shared in 2011. The photos and text were updated in 2019.

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Peanut Butter Truffle Brownies stacked on a square white plate

Peanut Butter Truffle Brownies

Rich, fudgy brownies topped with peanut butter truffle filling and iced with chocolate ganache!

  • Author: Liz
  • Prep Time: 30 minutes
  • Cook Time: 30 minutes
  • Total Time: 1 hour
  • Yield: 24 brownies
  • Category: Dessert, Brownies
  • Method: Mixing, Baking
  • Cuisine: American

Ingredients

Brownies:

  • 1 cup butter
  • 2 cups sugar
  • 3 eggs
  • 1 tablespoon vanilla
  • 2/3 cup cocoa powder
  • 1 cup flour
  • 1/2 teaspoon salt
  • 1/2 teaspoon baking powder

Peanut Butter Filling:

  • 1/2 cup butter (at room temperature)
  • 1/2 cup creamy peanut butter
  • 2 cups powdered sugar
  • 2-3 teaspoons milk

Ganache Topping:

  • 2 cups semi-sweet chocolate chips
  • 1/4 cup 1/2 stick butter
  • 2 tablespoons shortening
  • 2 tablespoons heavy cream, optional (I suggest adding if using chocolate chips)

Instructions

  1. Preheat oven to 350º. Put a long piece of non-stick foil or parchment in the bottom of a 9 x 13 inch pan, fitting so it covers the bottom of pan, the two shorter sides, plus has some overhang on each side for easy removal. If using foil, spray non covered sides of pan with nonstick spray. If using parchment, spray entire inner surface of pan with nonstick spray.
  2. In a large microwave safe bowl, melt the 1 cup butter in the microwave. Mix in sugar, then eggs and vanilla. Sift the cocoa powder into the egg mixture, along with the salt and baking powder. Mix well. Add flour and mix till just combined. Scrape into prepared pan and smooth top.
  3. Bake for about 25-30 minutes. Cool completely.
  4. While the brownies are cooling, mix together filling ingredients. Beat until smooth adding the extra teaspoon of milk if needed. Mixture should be spreadable. Spread filling evenly over cooled brownies. Chill for at least 30 minutes.
  5. While the filling is cooling, make ganache by melting the chocolate chips, butter, shortening and cream (if using) together gently in the microwave. Stop and stir at 30 second increments, till melted and smooth. Put dollops of ganache over filling and spread gently. Return to refrigerator to set topping.

Notes

Adapted from Betty Crocker, Loves to Eat and Sweet Pea’s Kitchen

Lambeau has not made an appearance on my blog in a while, so to celebrate Halloween, I present her as Moammar Gooddoggi:

Isn’t she a good sport???  Do you want to guess on the number of marshmallows it took to bribe her into posing? LOTS!

Note: This post may contain affiliate links; view my Disclosure Policy for details. I earn a small percentage from any purchase you make by clicking on these links at no extra cost to you.

94 comments on “Peanut Butter Truffle Brownies”

  1. You just can’t get too much peanut butter, that’s for sure!

    What a cutie that Lambeau! Is he named for Curly Lambeau?

  2. She’s too adorable!!

    I would love to get a hold of these brownie treats!

  3. Aw! She was a good sport! Too bad she couldn’t have one of these yummy brownies as a reward.

  4. I really tried hard not to see these brownies but I’m so happy I did! Love the combo, love the look and I’m sure I’d be in heaven after eating a couple of them!

  5. Your pup IS a good sport, mine wouldn’t take it for 2 seconds.

    The brownies look inviting, as always. I’m thinking.. if it’s adapted from 3 different recipes, that THIS is your recipe alone, right?!

  6. looks so good and your dog is such a good sport!

  7. This brownie is just gorgeous! I could die for it! They look so so good!

  8. Anything with the name “truffle” in the title is no doubt heavenly. I like the flavor layering as well as the mix of textures. Yum!
    It is amazing that your dog even stayed still for the pictures-too cute!

  9. Very trendy dog. You managed to get away with just marshmallows, lucky. I would have asked for at least a batch of the PB truffles

  10. What a good sport the dog was how did you manage to get him to participate … nice so cute. I needed that smile! These would make my son Curt flip, I will have to surprise him last night made some spooky peanut butter cups, so I will have lots of leaveovers to try this one… love it! divine!!!

  11. Lambeau is a terrific sport! I’m not sure that my yellow labs would have allowed me to dress them up.

    And once again you have produced another dangerously good looking dessert.

  12. LoL moamar gooddoogi,,,its cute,,,peanut butter truffle sound delish to me,,YUM-YUM,,

  13. Aww… he’s so adorable!

    Your brownies sound like truffle heaven!

  14. oooh, these look positively sinful, my dear, they look like a bit like “bajadera”, a sweet very popular here in my Balkan region of the world 🙂

  15. LOL! the pics of the dog is too funny. those truffle brownies look sinful- just perfect for this sweet tooth of mine!

  16. hahahahah Lizzy you made my day with the cute pics of Lambeau, thank you so much for this. She is more attractive this time then the ganache.

    Happy Monday to you too and I simply cannot stop admiring and at the same having a good laugh over Lambeau. Say hi to her on my behalf.

  17. That is a hilarious costume for your dog….so creative! And these brownies…all of my favorites combined in one. They sound so decadent!

  18. I bought some Reeses when I visited Singapore back in July and couldn’t stop eating them! This brownies really look delicious! And that dog of yours, she’s cool!

  19. Oh my word! I would positively die for one of those brownies!! I love Reeses cups.

  20. My dear Lizzy these look absolutely delicious this is my type of sweets!! look beauty and decadent!! Have a nice Halloween, I love your dog, my daugther make the same with one of my dog, xxgloria

  21. The brownies look awesome!
    Happy Halloween :),
    [email protected]Meatless Meals For Meat Eaters

  22. Now those brownies are my kind of dessert! The have the two flavor combos I really love, peanut butter and a lot of chocolate! Mmmmmm! Love your dog.. Happy Halloween! 🙂

  23. Ohhhh…Lambeau is so cute! Love her costume! And my, those brownies look so delicious! I bookmarked the recipe and will definitely try it!

  24. Lizzy, these look so good1 Man I really am wanting to make up a batch!
    Have a great Day…HAPPY HALLOWEEN!

  25. What a GREAT costume for you doggie! Happy halloween and these brownies are OMG delicious!

  26. Love the brownies! Anything with chocolate and peanut butter is a winning combination for me!
    Your dog must really LOVE marshmallows!

  27. Ciao sono entusiasta di averti trovata, hai un blog delizioso, ti seguo con piacere 😉
    Buona serata
    Sonia

  28. The loss of marshmallows was worth the post. We used to try and dress up Sadie but she got horribly depressed. Should have thought of the marshmallow trick! Oh – and the brownies – yes – to the brownies to the truffle filling – to peanuts and chocolate. But beware – it’s hard to remember the brownies after you introduce us to Lambeau.

  29. Lizzy, your dog is the cutest dog ever!!! <3

    These brownies sound decadent and delicious! I am sure my kids would devour them!!!

    Happy Halloween! 🙂

  30. This one really looks delicious! And nice outfit for the dog 😛

  31. I love it, your pooch is such a trooper. Too cute!

  32. So cute the pictures of the dog 🙂
    The brownies look awesome…love all the three layers.
    Hope you have a wonderful week ahead Liz!

  33. Oh Liz, I love, love this decadent brownie…and so would my peanut-butter loving son-in-law!

    Lambeau is much prettier as Moammar Gooddoggi than the original!! (Love the name!) Hilarious!

    Thanks for sharing! Happy Halloween!

  34. Oh, I just love your doggie and that costume! Oh, and I love these heavenly brownies too!!

  35. I loved Truffles so much that when we got our golden brown Pomeranian, I named him “Truffles”. Happy sweet Halloween!

  36. What a riot and what a sport! Your lab is adorable. Love the hat, glasses and smock.

  37. Those brownies look awesome–do you think they would work with a darker chocolate? Love how Lambeau looks!

  38. Liz,
    Your Peanut Butter Truffle Brownies are wonderful with all the layers of flavor, and the ganache on top, so decadent.

    How did you get Lambeau to wear that costume? My dog wouldn’t sit still for 2 seconds. Good dog, Lambeau!
    I’ll have to try the marshmallows.

  39. I love Lambeau…she’s always so patient, and sweet…and now, dressing her in a Halloween costume; priceless!

    Love your Peanut Butter Truffle Brownies. Perfect, yummy, and over the top delicious!
    Happy Halloween, my dear friend!
    xoxo

  40. Brownies again wow!!!

    Doggies looks so funny and cute

  41. Love fudgy brownies..peanut butter filling sounds terrific.

  42. Oooh the brownies looks so decadent , would lve to have a slice 🙂 .

  43. –Not sure what I’d rather kiss…the brownies or the dog :)) XX

  44. the brownies looks delicious!
    I love u put peanut buttr on the brownies = perfect lizzy! 🙂
    and ur dog looks cute 😉

  45. Not that it would be good for him but for posing like he did, I think your dog should get a taste of these delicious looking brownies!

    P.S. I can’t believe that he eats marshmallows!!

  46. Mmm sooo drool-worthy!! These look absolutely amazing, I wish I could grab one right out of this screen! I could really use an amaaaazing snack to get me through this work day 😉

  47. These brownies look awesome, can’t wait to give them a try!! Love the pooch! The costume is hysterical.

  48. LOL!! Your doggie Lambeau (what a cool name) is so cute. Yes she’s a good sport! My 5 year old son didn’t even listen to me to wear his Warrior helmet… Yummy desserts as always!

  49. Haha, aw, your doggie is so cute!

    And, these bars look amazing!

  50. Those look awesome. Peanut Butter + Brownies = Heaven!

  51. Lucen impresionantes y muy original,felicitaciones,abrazos grandes hugs,hugs.

  52. Lizy, thank you for finding my x-mas gift for my father-in-law! I will be his most favorite of all this year! These are outstanding. Your dog is such a good sport!

  53. Rich and decadent – I’m sold! These sound like such a fantastic treat.

  54. These look simply divine! Another great recipe…..

  55. Congratulations on Toop 9!

  56. I agree: this brownies look yummy! But what size pan does one use? It’s not specified in the recipe. 9×13? 8″ square? Thanks for clarifying this.

  57. Oh, man. I am salivating at work, yet again. These look absolutely perfect!
    And congrats!

  58. Congrats on the Top 9 today, #1!!!!

  59. These look incredible!!

  60. Love the costumes – so adorable! Love the brownies too – they look awesome.

  61. Congrats,Dear!:)

  62. Congrats on #1!! These brownies sure are worthy of the top spot. They look magnificent!

  63. Haha your puppy gave me a much needed laugh today. Thank you for that!

    Your brownies look…amazing!

  64. Bravo on No1 and no wonder – they look fabulous, Lizzy. Amazing what I’ve missed in 2 days already. Too funny with your lovely doggie: he is definitely cool in your sunglasses.

  65. Whoa….my son would LOVE these!

  66. NY Baker…sorry for my omission! These are baked in a 9 x 13 inch pan.

  67. I saw these on Food Buzz and had to rush right over, congrats! I am still chuckling over your dog, I can’t decide which one is best, they are all hysterical. You are the next Wegman!

  68. It looks delicious! I have to try!
    Thanks for sharing!.
    Begoña

  69. Those peanut butter truffle brownies and Moammar Gooddoggi are both adorable! 🙂

  70. Those peanut butter brownies are impressive!! They looks great and I love the photos!

  71. OK so how cute is this? Moammar Gooddigi, too funny! ANd as for the brownies… what can be said about perfection in confection? Seriously yummy, Lizzy, most well deserved Top 9!

  72. Well, there is no question whether or not I will be making these! I just love Lambeau!

  73. These sound amazing! Three layers of awesome!!!

  74. Oh my, that looks like a dream dessert – quite a bit of work but impressive. Your doggie is very patient with all the dressing up – too funny!

  75. Aw! She was a excellent sport! Too bad she couldn’t have one of these delicious cookies as a compensate.

  76. Very stylish dog. You maintained to get away with just chocolate buttons, fortunate. I would have requested for at least a group of the PB truffles

  77. Heaven. I’m all about these brownies

  78. You’ve never failed to entice me with your treats, Liz! xoxo 

  79. These brownies are fit for the queen 🙂 Luscious, and so tempting!

  80. These are the ultimate brownies for sure 

  81. Too bad I can’t reach through the PC screen and grab a bite! L 😛 L

  82. Mouth is watering, can’t wait to make these again!

  83. I have been looking for a recipe close to what my Grandmother would make for my birthday. I think this one is going to be close!

  84. I might drive across 3 states to have one of these. Probably two. Delish! 

  85. These look just heavenly! the layers look so creamy and delicious! Peanut butter and chocolate are one of my favorite combinations. If it’s in the house – it’s devoured!

    Lambeau looks so adorable in her costume. LOL Moammar Gooddoggi and that wig – spot on!

  86. Oh, la la, Liz! Truffles, brownies, and peanut butter, woo hoo! They look and sound delicious, perfect for Valentine’s Day! Happy Day to you and thanks for the recipe!

  87. Bring on the truffle brownies, these look heavenly!

  88. No heat when I got home, boiler acting wonky… SERIOUSLY need one of these brownies!!! And aw, the pics of Lambeau make me smile:@) Need an Izzy update!

  89. PB and chocolate for the win! These bars are stunning. I would not be able to stop at 1!

  90. These brownies look amazing! Reese’s pale by comparison.

  91. Oh my,vI might have to invent a moment to make these! We have plenty of Reese’s lovers in our house! And it was so nice to see Lambeau again. Bittersweet, I know.

  92. I’m a Reese’s Peanut Butter Cup fan so these work for me.

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