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Flourless Peanut Butter Cup Brownies

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Rich, fudgy brownies swirled with peanut butter and chunks of peanut butter cups make these flourless brownies ridiculously amazing (and gluten free!).
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Flourless Peanut Butter Cup Swirl Brownies gluten free

Flourless Peanut Butter Cup Brownies taste ridiculously amazing. Rich, fudgy brownies are swirled with peanut butter and dotted with chunks of peanut butter cups. You get double the chocolate, double the peanut butter, and none of that pesky flour. So there is nothing to get in the way of all the intense flavor in this easy gluten free brownie recipe that is also one of the best chocolate peanut butter dessert recipes!

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Flourless Peanut Butter Cup Brownies Recipe

Originally published on March 25, 2014. Updated and republished on July 19, 2017.

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A couple weeks ago was one of the Top 10 Days in My Life. Yup, this day ranks right up there with the day I got married, found out I was pregnant, and gave birth to my children. It was the day I confirmed that Baby Smiles is NOT allergic to peanut butter!

I hate to make light of this because I know people who suffer from serious allergies and it is a scary thing. But I am seriously addicted to the stuff. Like, open jar and insert spoon-type addicted. Throw chocolate into the mix and forget about it (oh wait, I’m from Jersey, I’m supposed to say “fuhgeddaboudit!”).

When I was little, we always went to this ice cream place where they make Blend-Ins – you know, ice cream whizzed up with toppings. My order every single time – chocolate ice cream with peanut butter cups. So it comes as no surprise that I had to make a Peanut Butter Cup No-Churn Ice Cream Cake.

I’ll let you guess what were the first types of candy to disappear from my Halloween stash. I mean, the only reason to not devour all the Reese’s is to make Flourless Chocolate Peanut Butter Cake Roll so that I can just eat more chocolate and peanut butter with my chocolate and peanut butter.

And green smoothies, do you think I usually make  blueberry smoothie or a pineapple smoothie or something like that? Nope. Most often it’s, yup, you guessed it, a Chocolate Peanut Butter Banana Smoothie!

Heck, I even have an entire Pinterest board dedicated to my Chocolate & Peanut Butter Obsession!

Flourless Reese's Peanut Butter Cup Brownies

Gluten Free Peanut Butter Cup Brownies

So, you know, brownies. And not just any brownies. Naturally these are chocolate peanut butter brownies! Beyond that, they are flourless brownies made with cocoa powder and chocolate chips, just to make sure it has that gooey, chocolate intensity. Then they are swirled with creamy, dreamy peanut butter for that salty, peanutty contrast to the sweet, fudgy brownie, and scattered with chunks of peanut butter cups for texture, and, you know, more chocolate and peanut butter.

Just pour me a glass of milk and give me one (dozen)! Or if you actually manage to not eat the entire pan, you could always make these Brownie Peanut Butter Mousse Parfaits.

But first…

Gluten Peanut Butter Cup Brownies

How do you make Flourless Peanut Butter Cup Brownies?

  • First, line your brownie pan with parchment paper. It really helps with removing these uber-gooey brownies from the pan.
  • Second, melt the butter and chocolate chips together. Since nobody really has a double boiler, I usually just set a glass bowl over a simmer pot of water. Then set it aside to cool
  • Now whisk the eggs and sugar until they get thick and pale yellow. Don’t rush this step, but it really only takes a minute or two. And yes, I do typically do this by hand with a wire whisk. I figure it helps burn off some of the brownie calories.
  • Add the chocolate mixture a little at a time into the egg mixture, whisking constantly until it is smooth.
  • The final step of making the batter is to whisk in the almond meal, vanilla, cocoa powder, and salt. Next, pour it into the pan.
  • Finally, drizzle the batter with peanut butter and swirl it around, sprinkle on the peanut butter cups, and bake.

Flourless Peanut Butter Swirl Brownies

Are Flourless Peanut Butter Cup Brownies gluten free?

As I mentioned, this is a flourless brownie recipe, so it is naturally gluten free. It is my go-to brownie recipe, and I’ve turned it into everything from Flourless Nutella Cheesecake Swirl Brownies to Flourless Caramel Cashew Cheesecake Brownies.

While these brownies don’t contain all purpose flour, they do have almond meal or almond flour, which is gluten free and typically easy to find these days.

Always be sure to read labels on ingredient such as vanilla extract and cocoa powder to ensure that they do not have any sneaky gluten-containing ingredients or are produced in a facility where there could be cross contamination. You might also want to check your chocolate chips. I always use the Costco-sized bag of Nestle Toll House Morsels.

So there’s just one last thing to check when making Flourless Peanut Butter Cup Brownies.

Are Peanut Butter Cups gluten free?

Hershey states on their website that all Reese’s Peanut Butter Cups are gluten free except the specially shaped ones for the holidays. So just stick with the regular or mini Reese’s and you are good to go. You can also use Justin’s Peanut Butter Cups or make your own Honey Sea Salt Peanut Butter Cups if you want to make these Flourless Peanut Butter Cup Brownies totally from scratch. You could even swirl it with the Honey Sea Salt Peanut Butter you stuff in the cups.

Peanut Butter Cup Brownies with milk

What are some more gluten free flourless brownies recipes?

Flourless Bailey's Fudge Swirl Brownies - rich, fudgy brownies with a ripple of Irish Cream chocolate fudge make these utterly decadent and irresistable! | cupcakesandkalechips.com | gluten free

These Flourless Mocha Brownies from That Skinny Chick Can Bake have a secret ingredient, and I’m not talking about the coffee. Fudgy Toffee Flourless Brownies from Mom on Timeout are so gooey. And if you want to change things up a bit, try Flourless M&M Brownie Cookies from Foodie with Family.

Gluten Free Brownies with Peanut Butter Cups

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Flourless Peanut Butter Cup Swirl Brownies Recipe

Making gluten free brownies doesn’t get any easier than when you just skip the flour completely and bake flourless brownies. This makes them extra rich and fudgy. Then add swirls of peanut butter and plenty of Reese’s Peanut Butter Cups and you have a pan of epic chocolate peanut butter brownies that nobody can resist.

I hope you’ll leave a comment and give it a FIVE STAR rating or share a photo on this pin on Pinterest!

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Flourless Peanut Butter Cup Swirl Brownies gluten free
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4.85 from 20 votes

Flourless Peanut Butter Cup Swirl Brownies

Rich, fudgy brownies swirled with peanut butter and chunks of peanut butter cups make these flourless brownies ridiculously amazing (and gluten free!).
Prep Time15 mins
Cook Time30 mins
Total Time45 mins
Course: Dessert
Cuisine: American
Keyword: brownies, gluten free desserts, kid friendly, peanut butter cup desserts, peanut butter recipes, vegetarian
Servings: 24
Calories: 189kcal
Author: Brianne @ Cupcakes & Kale Chips

Ingredients

  • 1 cup semisweet chocolate chips
  • 1/2 cup unsalted butter
  • 4 large eggs
  • 1 cup sugar
  • 1/2 cup cocoa powder
  • 1/2 cup almond meal
  • 1/2 tsp salt
  • 2 tsp vanilla
  • 1/2 cup creamy peanut butter
  • 12 mini peanut butter cups, coarsely chopped

Instructions

  • Preheat your oven to 350°F and line a 13×9 inch pan with parchment paper (or grease really, really well, though I’d recommend the parchment).
  • In a double boiler or a bowl set over a simmering pan of water, melt the butter, then add the chocolate chips, stirring until melted. Set aside to cool slightly.
  • In a large bowl, whisk together the eggs and sugar for a minute or two.
  • Add melted chocolate mixture a little at a time, whisking well after each addition.
  • Whisk in the cocoa powder, almond meal, salt, and vanilla.
  • Pour the batter into the prepared pan and spread evenly.
  • Place small dollops of the peanut butter over the batter and then create swirls with a butter knife or small spatula. Scatter the chopped peanut butter cups over the top of the batter and lightly press in any larger chunks.
  • Bake at 350°F for 20-25 minutes, or until just set in the middle.
  • Cool completely in the pan before cutting.

Notes

Adapted from these Flourless Nutella Cheesecake Swirl Brownies.

Nutrition

Serving: 1brownie | Calories: 189kcal | Carbohydrates: 16g | Protein: 4g | Fat: 12g | Saturated Fat: 5g | Cholesterol: 41mg | Sodium: 99mg | Potassium: 128mg | Fiber: 1g | Sugar: 13g | Vitamin A: 3.3% | Calcium: 2.3% | Iron: 6.1%

Enjoy!

And of course check out all of these new recipes for Chocolate Peanut Butter Day from my friends…

Flourless Peanut Butter Cup Brownies - rich, fudgy chocolate brownies swirled with peanut butter and chunks of Reese's Peanut Butter Cups. No flour means this is a gluten free dessert recipe! #brownies #peanutbuttercups #glutenfree
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Comments

  1. I love how you size your brownie recipes for 9″x13″ pans, while every other website I’ve looked at uses an 8″ square! LOL!!! A baker after my own heart… These look amazing. I’m going to make them for my son’s talent show tomorrow night.

    Reply

  3. I seem to be the only one that has never used almond meal. Where do I find it? I’d love to try these brownies. Thanks!

    Reply

  4. Hey,
    This look like I want to rip my screen to eat them. I was recently diagnosed for gluten intolerance and am allergic to eggs. I tried Betty Crocker brownie mix with egg replacer and it stuck to my pan and so greasy that I just threw the whole thing in trash. I would really like to try these but want to know if an egg replacer would work or not.

    Reese’s peanut butter candy line, all of them are my favorite 🙂

    Reply

    • Oh no! Honestly, I’ve never used the Betty Crocker gluten free mix and have never worked with egg replacer. I’ll see if any of my vegan friends have used egg replacer in a recipe like this. I know that sometimes egg is critical in gluten free baking to hold it together since it doesn’t have the gluten from flour.

      Reply

      • I followed your recipe with half of the measurements and substituted 2/3 cups of applesauce for 2 eggs. It was little runny so I added 1/4 cup of GF oats flour. I also used mini muffin pan rather than baking them in a square pan as I wasn’t sure how the results would be and if an 8X8 would be big or small enough. The results…they were okay as I didn’t care much for the melted chocolate chips taste but not bad. Next time I want to try only cocoa powder and omit chocolate chips. Your post has inspired me and I want to thank you as I have been craving some brownies for a while 🙂

        Reply

  5. Would love to invite you to share your food photos with us over at Food Foto Gallery . com – There’s no complicated approval process like the big sites. Any photos related to food (that are not watermarked) are accepted & get posted automatically. We also share our daily faves on social media, giving exposure to food bloggers when we can. Let me know if you have any questions and hope to see you at the site 🙂

    Reply

  6. I’m a huge fan of flour less chocolate cake, so I love that you made brownies with peanut butter, no less! These look just amazing. 🙂

    Reply

  7. Favorite chocolate-peanut butter treat? What ISN’T? That’s my answer!

    Those bars look so good. I haven’t salivated this much for a very long time.

    Damn….I really want that third prize pack…..

    Reply

  9. These brownies sound fabulous! I will make them for my niece’s birthday party. The family always says I don’t need to bring anything when I ask but I know they love it when I bring any of my chocolate goodies. I’m pretty much known for being a chocoholic – not sure that’s a good thing!?!
    My favorite is my chocolate peanut butter pie. It’s so light and fluffy and has lots of chopped up peanut butter cups all through it and scattered on top for garnish. Mmmm!

    Reply

  12. Whoa! Those brownies look awesome! I think my favorite is the ole stand-by. Reese’s Peanut butter Cup (or a Hershey bar and a jar of peanut butter in emergencies)

    Reply

  32. Anything with chocolate and peanut butter! I Love Reese Pieces peanut butter pudding cookies, they are amazing! 🙂

    Reply

  36. I love many forms of chocolate and peanut butter together! I had some giant peanut butter cup chunks last night from my husband’s “Everything But The…” Ben & Jerry’s pint. Those were wonderful. I also love chocolate peanut butter brownies like you made! I really like peanut butter cookies with chocolate chips too. I have yet to meet a chocolate and peanut butter combo that I don’t like, actually!

    Reply

  43. I can’t decide which of these is my favorite. They’re all divine. Another great recipe not listed is: Devils Food Cupcakes stuffed with Peanut Butter Ball and frosted with Peanut Butter Cream Frosting. Oh my goodness, these are so delicious!

    Reply

  46. My Favorite peanut butter and chocolate treat would be the no bake peanut butter and chocolate bars. Delicious! And when it’s just me at home I take a spoonful of peanut butter and pour chocolate syrup over it. Lol

    Reply

  47. My favorite has to be smittenkitchen’s chocolate cake w/ PB frosting. Or maybe it’s moose tracks ice cream…or maybe just an english muffin w/ nutella and PB – I can’t even decide!

    Reply

  50. Your brownies look wonderful and to imagine they are flourless — wow! I know they would be a 5 star recipe, even though I haven’t baked them yet. With no flour, the chocolate would only taste richer!!

    If forced to choose, I would have to say my favorite chocolate peanut butter confections were Buckeyes and a good creamy peanut butter pie with a chocolate crust and a chocolate topping. Delicious!!

    Reply

  55. I’m going to try making copycat Reese’s peanut butter eggs for my grandkid’s easter baskets this year

    Reply

  61. I like my peanut butter and chocolate the old fashioned way…….Peanut butter scooped out of the jar with a bar of dark chocolate. Simple and oh so good.

    Reply

  62. My favorite peanut butter and chocolate combo is the dark chocolate dreams peanut butter from peanut butter&company!

    Reply

  65. I’m a fan of no-bake chocolate-peanut butter oatmeal cookies. They’re quick to make and perfect to use as candy egg “nests” for springtime treats.

    Reply

    • Baskin robbins pb chocolate ice cream….or just pb and chocolate chips/bars (whatever is in the house) on a spoon with my morning coffee!!

      Reply

  67. Oh, my gosh!!!! I am going to make these as as soon as my daughter gets home from college. Or maybe I will invite some other family over to have an excuse to make them sooner. Thank-you 🙂

    Reply

  74. OMG this looks so yummy! I’ve been reading your blog for a while now, but I just had to comment on the deliciousness in this post! Definitely making these this weekend… I’m usually a fan of anything chocolate and peanut butter, but absolute fav is the peanut butter blossom cookies that my mom has been making as long as I can remember. She brings them to every party and always gets asked for the recipe.

    Reply

  75. So many “favorites”. But I have been thinking a lot lately of a chocolate cake with peanut butter frosting my incredible step mom makes. Brings back some amazing memories.

    Reply

  76. Yummo! There’s nothing that goes together better than peanut butter and chocolate… and add that to a baked good and I’m in heaven… now only if you were here to bake and share! 😉

    Reply

  85. These looks fantastic!! My favorite peanut butter and chocolate treat has to be the original reeces peanut butter cup 🙂 I wish I had one right now.

    Reply

  89. My favorite peanut butter and chocolate treat is chocolate covered Ritz crackers with peanut butter smeared generously on top!

    Reply

  90. Peanut Butter and Chocolate. …a match made in heaven! My favorite combination of the two is a brownie recipe that I make called Double Chocolate Chip Peanut Butter Heaven. Keeping my fingers crossed that I win this giveaway!

    Reply

  102. When I need a quick fix, I get a spoonful of crunchy peanut butter and dip it in semi sweet chocolate chips…yum!

    Reply

  106. Peanut butter is one of my favorite things to eat. The brownies look great. Please post this comment. I bumped the rating button and post too fast on my first. Thanks.

    Reply

  122. I remember how excited I was when I discovered my kids were not allergic to peanuts. I’m hugely addicted to peanut butter and–not to make light of the matter–I was just so happy we could continue keeping it in the house! Great recipe for Chocolate Peanut Butter Day!

    Reply

    • I know! I feel bad because I know people who deal with serious allergies, but it would be such a huge change. The almost-4-year old wouldn’t have take it well either!

      Reply

  126. Flour less pb brownies?! I have died and gone to heaven! We’re chocolate + pb fans here. Just made a chocolate cake with peanut butter buttercream last week. Aaaaand we ate it all. lol

    Reply

  130. Made these for my daughter to take to the combined youth activity, but not before grabbing a piece for those of us staying home.
    Super sweet, I’m going to make it again with 2/3-3/4 cup sugar instead, and maybe GF peanut butter chips too.
    The kids loved them.

    Thank you for posting a gluten free recipe! And dairy free!

    Reply

  131. My favorite chocolate and peanut butter treat are homemade peanut butter cups! I make them all the time, with graham crackers mixed in the peanut butter part to give it a crunch.

    Reply

  136. oh, these look soooo very good! i gave up lots of my stuff when i had to pack and move quickly. i am at bare basics. this would be wonderful!

    Reply

  137. Flourless, you say! I am so making these for a new friend who is gluten-free. Well, as soon as I check that she’s not allergic to peanuts. 🙂 These are wonderful, Brianne! They look so chewy and rich!

    Reply

  138. Brianne, I’m so glad you went the over the top, indulgent route with your recipe today. Today’s fabulous made up holiday deserves no less, lol. I’m swooning over how fudgy, rich and chewy these look. I’m so glad that Baby Smiles isn’t allergic to peanuts. It seems that there are so many kids with the allergy nowadays which would make life so hard for both you and him. Whew! Now you can keep indulging!

    Reply

  162. My favorite chocolate-peanut butter treat is homemade peanut butter ice cream drizzled with homemade hot chocolate fudge!

    Reply

  163. I love anything with peanut butter and chocolate…..especially peanut butter bars – pb cookie base, creamy pb filling, and chocolate ganache on top!!!
    Thanks for this opportunity, Brianne!

    Deb

    Reply

  167. The Chocolate Peanut Butter Cookie Dough Ball looked really good…. but then again a Chocolate Peanut Butter Cake would be good too!

    Reply

  168. Buckeyes. I would love to make your recipe, but we are VERY tree nut allergic here. So many great sounding recipes, and then I see NUT meal or NUT flour!

    Reply

  170. There’s a local candy shop here that makes their own dark chocolate peanut butter cups. HEAVEN!!!!!

    Reply

  180. Whoa! TOO MUCH GOODNESS for this time in the morning! My head is spinning! Why do you torment me with so many delicious looking recipes at 7am AND work with Peanut Butter and Co? They are amazing! I am so very jealous! Your brownies literally look like THE PERFECT peanut butter brownie! I cannot even begin to chose my favorite, but probably a white chocolate reeses is my ultimate, or a blondie with peanut butter m and ms! Yum!

    Now I have to go on my run, dreaming of PB and chocolate!

    Reply

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