Vegan Peanut Butter Microwave Mug Cake - Rhian's Recipes (2024)

Last updated - ; Published - By Rhian Williams 5 Comments

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I adapted my3-IngredientBiscoff Spread Microwave Mug Caketo make thisVegan Peanut Butter Microwave Mug Cake.

Vegan Peanut Butter Microwave Mug Cake - Rhian's Recipes (1)

It's just as quick and easy to make as the Biscoff version, but a little healthier as it's refined sugar free. And it's also gluten-free optional!

Itmakes theperfect quick snackif you're craving something sweet and also works well as a healthier dessert, for those times you finish dinner and want dessert NOW but don't have the time or energy to bake a whole cake. It takes only 5 minutes to make and mere seconds to eat!

Vegan Peanut Butter Microwave Mug Cake - Rhian's Recipes (2)

This vegan peanut butter microwave mug cake is delicious plain but it's also highly customisable.

You could add some chocolate chips to make it extra special, or if you like peanut butter and jelly, why not try swirling ina little bit of strawberry or raspberry jam?

Vegan Peanut Butter Microwave Mug Cake - Rhian's Recipes (3)

I also like to add an extra teaspoonful of peanut butter in the middle, which creates a lovely lava effect as the peanut butter melts and gets super gooey in the microwave. It also tastes incredible with a scoop of (dairy-free) vanilla or chocolate ice cream.

Vegan Peanut Butter Microwave Mug Cake - Rhian's Recipes (4)

I also tested a gluten-free version of this cake using rice flour, which worked well. You can alternatively use your favourite gluten-free flour blend.

Plain wholemeal flour could also work nicely in place of white flour, although you may have to add a little more milk as wholemeal flour can result in a drier texture.

Vegan Peanut Butter Microwave Mug Cake - Rhian's Recipes (5)

Looking for more great vegan microwave mug cakes? You might like my:

  • Chocolate Mug Cake
  • Peanut Butter Mug Cake
  • Biscoff Mug Cake
  • Carrot Cake Mug Cake
  • Lemon Blueberry Mug Cake

If you're not a fan of the microwave, you can also make this mug cake in the oven! Please see recipe notes for directions.

If you try out this recipe or anything else from my blog,I’d really love to hear anyfeedback! Please give it a rating, leave a comment, or tag a photo #rhiansrecipes onInstagram! Thank you.

Vegan Peanut Butter Microwave Mug Cake - Rhian's Recipes (6)

Vegan Peanut Butter Microwave Mug Cake

This Vegan Peanut Butter Microwave Mug requires only 5 minutes to make! Easy to make, refined sugar free, gf optional.

4.72 from 7 votes

Print Pin Rate

Course: Dessert, Snack

Cuisine: American

Keyword: gluten-free peanut butter mug cake, vegan peanut butter mug cake

Prep Time: 4 minutes minutes

Cook Time: 1 minute minute

Total Time: 5 minutes minutes

Servings: 1

Calories: 331kcal

Author: Rhian Williams


  • 4 tablespoons plain flour*
  • ¼ teaspoon baking powder (ensure gluten-free if necessary)
  • 2 tablespoons smooth peanut butter
  • 5 tablespoons unsweetened almond milk (or sub any other kind of plant-based milk)
  • 1 tablespoon maple syrup to taste (optional)
  • Optional: 1 tablespoon dark chocolate chips


  • Mix all ingredients together in a mug/small bowl until it has the consistency of cake batter - add a splash of milk if it's looking too dry

  • Microwave for 50 seconds, or until the cake has risen and cooked through - test with a skewer or fork and make sure it comes out clean. Microwave in 10-second bursts until you get your desired result

  • Enjoy immediately!


*Or sub 4 tablespoons rice flour or your favourite gluten-free flour blend

You can also make this in the oven instead of the microwave. Just bake at 180 degrees Celsius (350 degrees Fahrenheit) for around 15 minutes, or until risen and an inserted skewer or fork comes out clean.

Adapted from Kirbie's Cravings

Nutrition Facts

Vegan Peanut Butter Microwave Mug Cake

Amount Per Serving

Calories 331

* Percent Daily Values are based on a 2000 calorie diet.

Made the recipe?Tag @rhiansrecipes on instagram and use the hashtag #rhiansrecipes!

Disclosure: This posts contains affiliate links to Amazon. If you purchase any of these products, a small percentage will come to me with no extra cost to you! This income will go towards the running of this blog – thank you.

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Reader Interactions


    Leave a Reply

  1. Heather

    Vegan Peanut Butter Microwave Mug Cake - Rhian's Recipes (11)
    I've just tried this with Almond butter and it is wonderful too. 😊 Thank you so much for all your recipes. Having just turned vegan it's an awesome website to find. ❤️😋😃. (I'm also Gluten-Free and have to be Dairy free too! ❤️) 🙃 😊


    • Rhian Williams

      Aw thank you so much, really happy to hear that! Please let me know if you have any recipe requests!

  2. Jan

    Vegan Peanut Butter Microwave Mug Cake - Rhian's Recipes (12)
    almost as good as the biscoff original ! but i'm sure much healthier 🙂


    • Rhian Williams

      Yes! Thank you so much!

  3. Alexa

    Vegan Peanut Butter Microwave Mug Cake - Rhian's Recipes (13)


Vegan Peanut Butter Microwave Mug Cake - Rhian's Recipes (2024)
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