Flourless Microwave Peanut Butter Cake

Flourless Peanut Butter Mug Cake - Ready in less than 5 minutes!

Sometimes a dessert craving strikes and it can’t be stopped unless a sweet treat is consumed immediately. I mean, it happens to all of us, right? I’m not alone in this sweet tooth induced rage, am I?

I didn’t think so.

Flourless Microwave Peanut Butter Cake

When that craving strikes, you could rely on store bought goodies. But, come on, they aren’t that great and might not even satisfy that dessert desire.

You could always whip up a layer cake or pie or cookies, but who has time for that when you want dessert NOW?

Flourless Microwave Peanut Butter Cake

There are also treat stashed in the freezer, if you are anything like me. My freezer is always working full time. However, every once in awhile the things in there don’t sound good.

So we need a quick and easy dessert that can be made from the ingredients in the pantry. Might be nice if it was gluten free too. That’s a pretty tough checklist, but this dessert totally meets all the criteria.

Flourless Microwave Peanut Butter Cake

This Flourless Microwave Peanut Butter Cake takes just a couple minutes to make, less than one minute to cook, is gluten free, and totally made from pantry staples. You have to eat it hot out of the microwave (you’ll make the sacrifice, though it will be tough), so that you get a soft, moist, tender, slightly gooey cake that satisfies all your dessert cravings and more.

It is the perfect thing to make tonight while you’re watching the Super Bowl. You won’t miss a moment of the game, no matter who you’re cheering for. As for me, I say go Katy Perry!!!

Flourless Microwave Peanut Butter Cake

Flourless Microwave Peanut Butter Cake

Prep Time: 2 minutes

Cook Time: 1 minute

Total Time: 3 minutes

Yield: 2 cakes


¼ cup granulated sugar

½ teaspoon baking powder

2 large eggs

¼ cup creamy peanut butter

1 teaspoon pure vanilla extract


Lightly oil two large coffee mugs.

In a medium bowl, stir together sugar, baking powder, eggs, peanut butter, and vanilla until well combined. Divide equally among the mugs.

Microwave 1 mug at a time. Check the cakes after 30 seconds. Ideally the cake should still be a little gooey. If it is not done microwave it an additional 30 seconds. Do not exceed 1 minute total. Serve immediately.


Recipe adapted from Peanut Butter and Company


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  1. I’ve been meaning to try one of these quick microwave cakes – and this looks like a good one to start with!

    • Laura says:

      I’ve made several. They tend to turn out really well as long as you don’t over cook them and eat them immediately. Otherwise they get a bit dry.

  2. Zainab says:

    I agree with you, when that cravings start no one has time for baking layer cakes. These are perfect!!

  3. mookies says:

    Impressive, only 3 ingredients and no effort!
    This is ideal when the craving for sweet tooth strikes.

  4. Beth says:

    What a fast and easy way to satisfy a craving! This recipe could be very dangerous.

  5. Debbie Eccard says:

    I love this. Super fast and I bet its great!

  6. I had just such a craving tonight! and this would have been peeeeerfect-so peanut buttery and easy!

  7. Great idea, Laura. And quite a delicious way to enjoy any sort of sport…or singing! P.s. This Ninja Baker <3s Katy Perry, too =)

  8. Yum Goggle says:

    Hi there from YG. Thanks for your submission. Keep the gluten-free and 1 or 2 serving recipes – our viewers love them and so do we!

  9. Catherine says:

    A wonderful treat! I do love peanut butter!!

  10. I just cannot believe this is flourless and microwaved? WHAT?!? i love IT

    And please don’t forget to complete my Reader Survey.

  11. Saving this for a rainy day when I need dessert and store-bought will just not cut it!

  12. Peanut butter cake? That I can make in the microwave? My kind of recipe! I love peanut butter, and I like quick and easy. This is wonderful — thanks.

  13. A peanut butter dessert that can be made in seconds. Yes! Thanks for sharing this Laura! It’s also a great way to fix yourself a little rewarding dessert at the end of a stressful day! I’m definitely trying this out!! 🙂

  14. This is perfect for dessert emergencies! It looks so light and airy, it’s amazing that there’s no flour. Looks delightful.

  15. Sometimes I need a desert stat! This is a perfect recipe for such a situation 🙂

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