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    Home - Cake

    Published: Sep 25, 2019 · Modified: Oct 5, 2021 by Amanda Powell · This post may contain affiliate links.

    Peanut Butter Mug Cake

    Jump to Recipe Print Recipe

    There is nothing better than a foolproof no-bake dessert and this peanut butter mug cake is the best of them all. Jam packed full of peanut butter and irresistibly moist, you will want this mug cake recipe every night of the week! 

    Overhead peanut butter mug cake in large white mug with silver spoon

    There isn't anything better than being able to hang out and relax with a bit of cake at any time a craving strikes. It's also something that helps me get through times when I just don't want to do anything as a way to reward me for getting things done anyway. Mug cake recipes are life savers. 

    This peanut butter mug cake is exceptionally good for those particular moments I need a healthy dose of peanut butter.... and maybe some chocolate chips thrown in for good measure. Or ice cream, maybe. 

    Is Peanut Butter Mug Cake Eggless?

    Yes! Since the cake is so small, you don't need much to add to the structure or moisture of the cake. This peanut butter mug cake is naturally eggless. 

    close up peanut butter mug cake in large mug milk in background

     

    Can You Make Mug Cake with Other Nut Butters?

    Yes, you can substitute the peanut butter for any type of nut butter you like! Just know that the different nut butters will affect the final flavor of the cake. I have never tried it with anything outside of peanut butter and don't guarantee you will like it. If you have an allergy to peanut butter or nut butters in general, you can try my vanilla mug cake or black forest mug brownie. 

    You can also experiment with using things like cookie butter. Please note that you will need to cut down, or even eliminate the sugar in the cake recipe altogether to keep it from being cloyingly sweet.

    Can You Make Mug Cake Without Baking Powder?

    The baking powder gives the peanut butter mug cake lift and makes it nice and fluffy. Saying that, since the mug cake is so small, you can probably get away with not using the baking powder if you don't have any. Just be aware that your cake might be a little more dense than if you did use it. 

    mug filled with peanut butter cake with spoonful of cake

    Can You Make Mug Cake in a Bowl?

    Yes, if your bowl is microwave-safe and can fit at least 12 ounces, you should be more than fine to use a bowl. In a pinch, you can use pretty much any microwave-safe container that is big enough to keep the batter from overflowing. 

    Can You Make Mug Cakes in the Oven?

    Yes, you can make your peanut butter mug cake in the oven. If your mug is microwave-safe, it may be oven-safe too. Just double check before you use it! Heat the oven to 350 degrees F and start checking the mug cake after about 10 - 13 minutes. It should be ready when a toothpick comes out with only a couple of crumbs sticking to it. 

    Spoonful of peanut butter mug cake with chocolate

    mug filled with peanut butter cake with spoonful of cake

    Peanut Butter Mug Cake

    Amanda Powell
    Irresistibly moist peanut butter mug cake - the perfect no-bake cake
    Print Recipe Pin Recipe
    Prep Time 3 mins
    Cook Time 1 min
    Additional Time 1 min
    Total Time 5 mins
    Course Cake
    Cuisine American
    Servings 1 cake
    Calories 628 kcal

    Ingredients
      

    • 3 tablespoons peanut butter
    • 3 tablespoons milk
    • 2 tablespoons unsalted butter melted
    • ½ teaspoon vanilla
    • 3 tablespoons flour
    • ¼ teaspoon baking powder
    • pinch salt
    • 2 ½ tablespoons granulated sugar
    • 2 tablespoons chocolate chips optional

    Instructions
     

    • Add the peanut butter, milk, butter, and vanilla to a mug. Mix well until completely combined.
    • Pour in the remaining ingredients and stir until just combined.
    • Microwave for 45 - 90 seconds, or until the sides begin to slightly pull away and are set. The center may still look a bit moist.
    • Allow the cake to rest for one minute to finish cooking and cool a bit before eating.

    Notes

    I used a 16 ounce mug and doubled the recipe with great success - just add roughly 30 seconds to your cook time.

    Nutrition

    Serving: 1gCalories: 628kcalCarbohydrates: 68gProtein: 16gFat: 45gSaturated Fat: 13gPolyunsaturated Fat: 16gCholesterol: 65mgSodium: 314mgFiber: 5gSugar: 37g
    Keyword mug cake, peanut butter
    Tried this recipe?Tag me on Instagram! @acookienameddesire #acookienameddesire

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    About Amanda Powell

    Baker, photographer, and sometimes world traveler behind A Cookie Named Desire. Obsessed with helping people live life sweetly with delicious food to share with the special people in your life and creating lasting memories.

    Reader Interactions

    Comments

    1. Kathryn says

      September 19, 2022 at 2:47 am

      Hi can I use the peanut butter chips as Id like to give it as a gift?

      Reply
      • Amanda Powell says

        October 03, 2022 at 3:18 pm

        Yes, it should be okay as long as they know it wont be peanut-buttery all throughout as it would using all peanut butter

        Reply
    2. Beth says

      October 11, 2019 at 2:28 am

      I would love to start my day with a hot, steaming cup of peanut butter and chocolate cake!! Thank you for helping my morning start out delicious!

      Reply
    3. Jessica Formicola says

      September 27, 2019 at 10:58 am

      Sometimes I crave something sweet but don't feel like making an entire dessert. This recipe is perfect for that! Thanks so much for sharing!

      Reply
    4. Liz says

      September 25, 2019 at 9:43 pm

      I'm a peanut butter addict so this recipe makes me SO excited! YUM!! Thank you!

      Reply

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    Hi, I'm Amanda! I am the baker and photographer behind A Cookie Named Desire. I'm a world traveler (sometimes) with a major weakness for cookies and cheese. While I'm mostly self-taught, I recently received a degree in Food Science!

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