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Peanut Butter Brownies Recipe | Vegan, GF

This is exciting for a few reasons. 1) Remember last year when I shared my mum’s birthday cake? Well, it’s that time of year again (it was Wednesday).  2) I’VE FINALLY MADE GLUTEN FREE BROWNIES. My original brownies recipe is one of the only things I’ve made that I’ve struggled to make gluten free. They always either turned out too dry or didn’t rise or just weren’t quite right. Not this time. These vegan peanut butter brownies can rival any that contain gluten.

I’ve made a double recipe stack and filled them with peanut buttercream. I didn’t want to make a regular chocolate cake because I wanted that gooey brownie texture. And I didn’t see the point in making a fudge cake to have to slice it in half to fill it when I could easily make two batches of brownies instead. 

They have a hint of peanut butter in the batter, a peanut butter swirl running through them. Then, I filled them with a peanut buttercream icing and topped it with chocolate buttercream.  

I made the decision to make one batch, then make another batch while they were in the oven. That way they could stay on the same shelf in the oven, and I could ice the bottom layer while the top one was in the oven.  

peanut butter brownies recipe peanut butter brownies recipe

Vegan Peanut Butter Brownies Recipe 

The recipe below is for one layer, so please double it if you’re planning on replicating this as a cake rather than just a batch of brownies. I’m using peanut hottie, which I was gifted for a previous collaboration. I’m under no obligation to post/ use it here. You can, of course, use any brand of powdered peanut butter of your choosing.  

This recipe is dairy free, gluten free and vegan. You could make it soy free if you switched to another non-dairy milk of choice.  

5 from 7 votes
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Vegan Peanut Butter Brownies Recipe

Course Dessert
Cuisine American
Keyword Brownies, Gluten Free Brownies, Peanut Butter Brownies, Vegan Brownies
Prep Time 15 minutes
Cook Time 50 minutes
Cool Time 1 hour
Total Time 1 hour 5 minutes
Servings 18 Slices

Ingredients

Brownies

  • 160 g oat flour I used GF
  • 160 g golden caster sugar
  • 2 tbsp cocoa
  • 1 tbsp peanut hottie
  • 4 tbsp sunflower oil
  • 1 cup vanilla soy
  • 150 g vegan chocolate I used Bourneville
  • 1 tbsp peanut butter
  • ½ tbsp peanut butter (to swirl)

Filling

  • 1 cup icing sugar
  • 2 tbsp butter
  • 2 tbsp vanilla soy
  • 1 tbsp peanut hottie

Icing

  • 2 cups icing sugar
  • 3 tbsp dairy free butter
  • 2 tbsp non-dairy milk
  • 1 tbsp cocoa powder

Instructions

Brownies

  1. Preheat your oven to 180 degrees and line an oven friendly baking dish.
  2. Melt your chocolate in a heatproof bowl over a pan of boiling water. Once chocolate has melted, stir in the tbsp of peanut butter until combined.
  3. Sieve your flour cocoa and peanut hottie to ensure a smooth mixture. Once done, stir in the sugar until dry ingredients are fully combined.
  4. Now stir in the melted chocolate mixture, oil, and vanilla soy milk until fully combined. Mixture should be quite thick.
  5. Pour your mixture into your lined baking dish then swirl the ½ tbsp of peanut butter through the top layer. It doesn’t have to be stirred in or mixed.
  6. Place on the middle shelf of the oven and bake for approximately 25 minutes.
  7. When brownies are cooked, allow them to fully cool and set before icing.

Filling

  1. Add the icing sugar, vegan butter, milk and peanut hottie to a mixing bowl.
  2. If using your electric mixer, start at low speed, gradually increasing speed. Alternatively, I mixing by hand, mix slowly until perfectly smooth and thick.
  3. It should be very thick, but still easily spreadable.

Icing – This is pretty such the same as the filling, just subbing the peanut hottie for cocoa powder.

  1. Add the icing sugar, vegan butter, milk and cocoa powder to a mixing bowl.
  2. If using your electric mixer, start at low speed, gradually increasing speed. Alternatively, I mixing by hand, mix slowly until perfectly smooth and thick.
  3. It should be very thick, but still easily spreadable.

Assembly

  1. Once the brownie batches have cooled, spread the filling over one batch.
  2. Then carefully add the second batch on top. I trimmed the edges at this point to make sure the surface was even to spread my icing on.
  3. Using a knife, spread an even layer of the chocolate icing over the top and sides of the layered brownies.

Serve and enjoy!

Recipe Notes

The recipe below is for one layer, so please double it if you’re planning on replicating this as a cake rather than just a batch of brownies.

What do you guys think? I’m quite proud of this one, I wish I could send you all a slice! What’s your favourite kind of birthday cake? 

Until next time, 

Sophie 

32

Comments

  1. 5 stars
    Aw, happy birthday to your mum lovely. I love baking cakes for my family too, my mum loves lemon cake.

    This recipe looks delicious! I’m not a huge fan of peanut butter myself but my sister loves it so this would be perfect for her. Thanks for sharing.

    Reply

  2. Oh, that just sounds and looks delicious! Will deffo be giving this one a go. I like that it sounds not too peanut-y as it can be a bit overpowering, can’t it?!

    I can’t choose my favourite type of cake… I love all cake!

    Thanks for sharing!

    Aimsy xoxo
    https://www.aimsysantics.co.uk

    Reply

  6. These look sinful and sooooo Yummy!! I know the struggle of making gluten-free good desserts, so I really do appreciate this recipe. So going to try this. Also, going to your tomato soup I just noticed on your blog, as tomato soups are my favorite:)

    Reply

  10. This looks absolutely gorgeous and right up my family’s alley! We are slowly turning vegan in our house and I’ll have to show this to my son as I’m sure he is going to want to try this out!

    Thanks for sharing!

    Trace x

    Reply

  14. I’ve been working on my eating habits lately, and have been looking for gluten free/vegan snacks I can make. This looks soooo good and I’ll try it soon

    Reply

  15. Flora and I are massive fans of all things peanut butter but I’ve never tried a peanut butter brownie. Salted caramel brownie yes, but not peanut butter. This looks utterly delicious, and I can quite see why you made two batches at once – even so, I bet they didn’t hang around long! Lisa x

    Reply

  18. Wow this cake looks really yummy! Peanut butter has never been my favourite but if it’s paired with a brownie I’m sure I would love it! Great recipe x

    Reply

  19. Omg these sound to die for! I can always count on your blog for a truly good recipe I love peanut butter and brownies are my favourite dessert to this combination is right up my street, I’ll definitely be giving these a try! X

    Reply

  21. I wish you could send me a slice also, it looks so good!! I’m a fan of peanut butter and brownies so I feel like I would absolutely love this. I don’t eat many cakes and things, so they are always such a great treat when I do have them, I’m not sure what my favourite cake is though, I do love a good cheesecake though!

    Chloe xx
    http://www.chloechats.com

    Reply

  23. 5 stars
    RIP Alice. These look and sound absolutely freaking incredible. I’m actually a newbie to the peanut butter fan club, I spent a good 20 years of my life despising it. I really do love it now although it’s one of those foods I have to be in the mood for! I literally cannot get over how beautiful this recipe looks, especially both of the types of buttercream. PLEASE MAKE THESE ON OUR SLEEPOVER.
    Alice Xx

    Reply

  25. 5 stars
    This brownie recipe has got me craving brownies. I like the idea of peanut buttercream in the middle of the brownie. This sounds so delicious!

    Reply

  26. 5 stars
    I have tried just a few just vegan recipes for brownies and I had the same issue as you did, and it is very frustrating, once I did a recipe and it never got solid it was a total fail, like at least with the too dry ones I could still eat them lol. I never really thought about adding peanut butter in them, but this is a recipe I have to make. This would be the perfect thing to bring to my little sister’s graduation 🙂

    Reply

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