One Minute Peanut Butter Cake
Picture this scene: it's 8:30 in the evening. The sky is just starting to get dark outside your living room window. You ate a delicious, healthy and veggie-filled dinner a few hours ago and now you are ready to sit down to the most recent episode of So You Think You Can Dance and dive into a decadent plate of dessert.
Oh wait, you have no dessert.
No chocolate, no cookies, no ice cream, no cake, no pie, not even a Jordan almond. What's a girl to do?
Well she's to go to her microwave.

You can make a delicious, fluffy, moist peanut butter cake in your microwave in about one minute (30 seconds mixing, 30 seconds zapping). It even has frosting (as any good cake does). This is portion control and convenience at their greatest.

The options are also pretty endless. Toss in a tablespoon of chocolate chips for a chocolatey and gooey kick (like I did) or a few peanuts for an earthy crunch. Or leave it plain for the quickest and easiest route to dessert o'clock.
📖 Recipe

One Minute Peanut Butter Cake
Ingredients
- 1 egg beaten
- 1 tablespoon brown sugar
- ½ teaspoon baking powder
- 1 heaping tablespoon flour
- 2 tablespoons peanut butter
- 1 teaspoon milk
- 1 tablespoon powdered sugar give or take
Instructions
- In a small bowl, whisk together egg, brown sugar, baking powder, peanut butter and flour.
- Pour batter into a greased ramekin. Microwave for 30 seconds.
- While the cake is microwaving, stir together milk and powdered sugar, adding more powdered sugar if necessary to thicken frosting.
- Remove cake from ramekin (or don't), pour frosting over top.
- Enjoy!





Hola! I've been following your blog for a while now
and finally got the bravery to go ahead and give you a shout out
from Humble Tx! Just wanted to say keep up the good work!
fast, easy & delicious, it's the perfect recipe!
This may seem dumb but how do you know when it's done? The center remained wet even after a min of cooking. The wet center if touched get absorbed in the cake but you can see the imprint of wetness . If Is it supposed to be slightly wet in the center?
This is so perfect thank you.
Thank you for making a recipe that calls for the whole egg and not just part of it because I HATE separating eggs. I am going to make this asap!
OMG! Was craving something sweet tonight. Didn't want to go to the store and certainly didn't want to end up with a whole cake that I would inevitably feel the need to completely consume. This was perfect!! I didn't have any chocolate chips so I added some m & m's from my kids candy jar. Heaven! So nice to eat a "whole" cake and feel no guilt!
Hi Cassie - I don't have a microwave - is it ok to cook this in the oven and what temp and time would you recommend? Thanks! Sounds great!
I haven't tried cooking in the oven, but there are a few folks the comments who have done some experimenting if you want to read their experiences. Good luck!
I was looking for a peanut butter cake recipe without butter.
I was sooo glad to find your recipe which was unbelievably quick and all the ingredients were there in my kitchen.
Tried it and loved it. Thank you! 🙂
How many calories are in this?
Hi Cassie
Brilliant recipe. I changed it around a little, almond meal instead of flour as I am on a wheat free diet, and zapped it for a bit more in the microwave because it look a bit raw after 30 seconds but it was delicious.
http://sias-cooking-blog.blogspot.com.au/2013/03/one-minute-peanut-butter-cake.html
Yuk! Tried this, it looked ok when done but tasted like stogy peanut butter flavored scrambled eggs. Never again. Oh and it's optomistic to whisk for less than a minute, soon as you add the peanut butter, it's like working with plaster. And half a teaspoon is excessive, a normal sponge cake uses about that much. You could taste the baking powder.
Wow Chump how about being tactful! BTW recipe turned out just fine.
I make all my microwave cakes without eggs. I don't even use a replacement. Very delicious.
This was perfect! It was just what I needed. I try not to keep "just in case" sweets in the house because then EVERY night becomes a "just in case" night :-
I made this for the first time last night and I will be making it again (I found you via Pinterest).
It was soo good! Instead I cooked it for one minute and drizzled warmed Nutella over the top! Made it in two ramekins-one for my older sister and one for me- perfect amount for a mid-day snack. Thank you so much I'll be making this for my sleepover this week!
I made this a million times and I love it! Thanks for the recipe. Just posted a biscoff version on my blog. You can see it here: http://www.somethingswanky.com/2012/07/biscoff-minute-mug-cake.html
Just tried it. BEST MICROWAVE CAKE EVER!!!
Used selfmade peach-jam on top instead of the frosting from your recipe. I could eat tons of this <3
Tried to mass produce this recipe for my family, (me, the hubs and my son) and it was too hard. Definitively a single serving treat. I double it For me though. Since I don't have a ramekin, I made it in a tea cup. You know the ones right? They come with the plates from your Granddad that you don't really know what to do with. Works in a mug too. Thanks again!
Made this with no sugar, half the peanut butter and no frosting and it was STILL awesome! Thanks for the recipe!
I had to come back to say that I think I got extra lucky having tried this mug cake before any of the others. I'm beginning to think yours are the only good recipes out there! I'm currently counting calories, so I was trying to find a lower cal alternative - but after eating a few cakes that were basically just chocolate flavored eggs - I think I'm just going to stick to this one & make it as a treat every couple weeks.
Just made myself one of these for breakfast! Super impressed. Our microwave is an older model so it undercooked it a bit, but I like my cakes gooey anyway. Definitely making this a staple.
*also,replaced the powdered sugar with honey, and drizzled the same over top rather than icing, love the combination.