
The first time I tried making a mug cake, it turned out rubbery, completely disappointing and most of it ended up in the trash. I gave up on the entire concept of microwave baking until I found another mug cake recipe and decided to give this one the benefit of the doubt. Personal growth it seems, ladies and gents, that now allows me to reconsider things that I’ve once vehemently written off.
I am pleased to announce that this small leap of faith turned out to be the latest addition to my Chocoholics Anonymous Hall of Fame.
For those of you who are new here, the Chocoholics Anonymous (CA) title is given to only the most chocolicious, deadly, gooey, decadent and sinister of all chocolate cakes worthy of fearful adoration. Call it the crème de la crème of all chocolate cakes, the best of the best out there!
So far, only these two have made it to the list:
The Chocoholics Anonymous Cookie and the Chocoholics Anonymous Cake.
Today, we add this surprising Microwave Fudge Brownie in a mug to this elite list.
This one might be the fudgiest of them all, because I, a self-proclaimed chocoholic, needed three sittings to finish one mug cake. It was too rich, too gorgeous and too good to finish it in one go.
And did I mention that this is an egg-less, butter-less – completely vegan dense fudge brownie that is ready in under 5 minutes from start to finish?
Just combine all the ingredients in a microwavable mug, microwave for a minute* and serve!
Seriously, find an excuse to make this one for yourself, and you will never ever look down on microwave mug cakes ever again!
Because of it’s intense richness, I would advise topping this with either whipped cream or ice-cream. And although I would normally not advise this, share it with someone you love. Preferable another chocoholic. Do not share with those who think chocolate is just another ingredient that bakers use and kids love (ahem, looking at you husband!). This cake is wasted on the muggles.
Thanks Gemma Stafford of Bigger Bolder Baking for this amazing recipe!
Some things to remember:
1. My microwave gives an 800W output. And it took me about 1.5 minutes to cook these. With higher wattage, reduce cooking time (1200W = 1minute)
2. Cool the cake completely before digging in.
3. Use a microwavable mug that can hold atleast 1 cup of water (235ml) with a quarter cup room to spare. The cake rises a little while cooking, and you’ll need that extra room.

Bobby says
Tina, hi. Cann I use Hershey’s chocolate syrup instead of the sugar and cocoa? In these days of staying indoors, sourcing more cocoa and brown sugar seems unlikely. But I do have a bottle of Hershey’s!
Bobby
Tina Dawson says
I bet you can, but you might have to regulate the sugar and water used in the recipe. A little trial and error and it could definitely work! Good luck!
Divyanshee says
Tina I don’t see anywhere at what temperature are we supposed to leave the brownie in microwave to cook. I have a whirlpool microwave
Tina Dawson says
There’s no temperature setting for this – just microwave on high like you normally use the microwave for other things.
SammiiDX says
Just made this and OMG its perfect !!! Really great recipe if you need a quick chocolate sugary hit!
Joy says
Disappointed, expected ooyey gooey fudgey eat with a spoon brownie not overly dry crumbly cake. Ate a forkful and put the rest in fridge until I can go out and get a jar of fudge sauce….maybe that’ll help!
Tina Dawson says
I’m so sorry if this recipe did not work for you. I’m not sure what went wrong – I made the recipe again today to check, and it was moist and gooey. Maybe the microwave was too hot or the mug too thin? These could affect temperatures and result in a dry cake. Was the batter watery and thin? I want to help.
Madhumita Bhattacharya says
I love this recipe so much! It’s really fudgy, almost too much, though. I added all my leftovers: chopped white chocolate, Nutella, marshmallows, even an old mini Snickers.
Tina Dawson says
OMG that is a LOADED brownie!!! Enjoy!
Abeer Ahmed says
Hi, cani use white sugar instead of brown ? Also is the batter thick or liquidity? Because mine looked like a ball of fudge before even cooking it :/ . Please advice thanks
Tina Dawson says
Absolutely you can. The batter is quite liquid – pourable. If not, add some more water. Some brand flours/cocoa powders can absorb a lot more liquid.
Mia says
It was Ah-mazing! I only added 1 tbsp of brown sugar and it was sweet enough. It was so fudgey and moist, is definitely a keeper!
Tina Dawson says
Thank you so much Mia, I’m glad you liked it!
Tiger says
This turned out awesome
Tina Dawson says
Thanks for letting me know! I’m so happy!
Janet says
It was so chocolatey I almost cried. As a fellow chocolate lover this is too much, I think it is unethical how much chocolate is in this recipe. Please update with less chocolate.
Tina Dawson says
I find a dollop of ice-cream helps mellow out the fudgey-ness. You can also eliminate the chocolate chips and add only 1.5-2 tbsp of cocoa powder next time.
Jimmy says
it crackles in my mouth like pop rocks did I do something wrong. Even though it came out of the microwave smoking I gobbled down every last greasy crunchy chunk
Tina Dawson says
Pop rocks? That’s weird – no, it’s not supposed to do that. There isn’t even any baking soda in this recipe! Are you sure someone didn’t accidentally sneak in some pop rocks into the batter when you weren’t looking? 😛
Fraisa says
OMG! Best thing ever! I was skeptical to be honest because I’ve tried a lot of recipes, but let me tell you this one is AMAZING! I just used 1/3 of every ingredient to get an individual portion… thanks a lot! I will be enjoying this forever!!
Tina Dawson says
Yaaay! Thanks so much for letting me know, Fraisa!
Laura says
Any tips on making sure the chocolate chips don’t burn because when I do anything in the microwave my chocolate always burns.
Great recipe by the way. Thank you.
Tina Dawson says
Hey Laura – The chocolate chips are stirred in to the batter, and I don’t think it would burn within such a short time. But I would keep an eye on your microwave wattage too – my 800W microwave needed too mins. If you can adjust your microwave wattage to match that, please do. Otherwise, reduce cooking time accordingly. Hope you like it!
Sarah Brinegar Trenalone says
I haven’t tried a microwave cake yet.. I keep thinking I’ll do it haha. This looks delicious!
Tina Dawson says
Thanks Sarah! You shd try, it surprised me as well!
Ali Randall @ Home & Plate says
I am going to have to give this recipe a try. What could be better than a chocolate fix when you need one. I have a microwave so this recipe is a go! Yum.
Tina Dawson says
Thanks so much Ali! let me know if you loved it!
Carine C. says
I love mug cake such a quick sweet fix while watching a movie at night! Yours looks delicious.
Tina Dawson says
Thanks so muuch Carine!!!
Debi Wayland says
I’ve read many different reviews of mug cakes, from really bad to good. I’m happy to have found one that’s good. and, I’m happy that you kept trying them (so I didn’t have to! hee hee). I can’t wait to make this when the craving strikes!
Tina Dawson says
I am glad I could be of use! It can be quite putting off when a recipe doesn’t work. I am glad that I kept at it till I found this one! Microwave mugs cakes are back on my list! 🙂