Introduction: 5-minute Chocolate Cake

Picture of 5-minute Chocolate Cake

There are a lot of 5-minute cake-in-a-mug recipes out there, but I've taken the time to experiment with eight variations on a a recipe to come up with the best, tastiest, and most reliable 5-minute chocolate cake on the web.  This quick and easy chocolate cake recipe will change your life! Now you can have a rich, chocolate dessert in an instant.  So grab a big mug (I link to my favorite in the next step) and get ready to make new kind of cupcake - the cake in a cup!

Step 1: Supplies

Picture of Supplies

  • 4 tablespoons flour - make sure you measure it right - or the cake is a lie!
  • 4 tablespoons sugar
  • 1 tablespoon unsweetened cocoa
  • 2 tablespoons whisked egg - 1 egg is too much, 1 egg white is too eggy, 1 yolk is too dense, but 2 tblsp is just right!
  • 3 tablespoons milk
  • 3 tablespoons oil
  • 3 tablespoons chocolate chips
  • splash vanilla or other flavoring - try peppermint or cinnamon
For a fudgier version, omit egg.

Step 2: Mix Your Ingredients

Picture of Mix Your Ingredients
  • Add all of the dry ingredients to the mug and mix.
  • Add the egg and combine well. It gets pretty pasty at the point.
  • Stir in milk and oil.
  • Add chocolate chips* and splash of vanilla. Stir well.
*if you don't have chocolate chips, try a broken up candy bar - I can't stress how much this amps the awesomeness of your cake

Step 3: Nuke It!

Picture of Nuke It!
  • Microwave for 3 minutes in a 1000w oven, or 4 minutes in a 700w oven.
It will start to crown over the top of the mug. Don't panic! It will collapse once the heat stops.

Step 4: Experiment!

Picture of Experiment!

Some people have had mixed results with the final texture of this cake.  

This cake is tricky mostly because of people's microwaves all being different.  I experimented a lot with the amounts of different ingredients. 

I think if it's something you're going to make quite a lot in the future, it's worth fussing around with!  Try just a bit less time in the microwave (you can always put it back in for more).  If that doesn't help, try a little less egg, or a little less flour. 

Keep notes on what you're trying each time, and eventually you'll find the cake that's perfect for both you and your microwave!


Chucky46 (author)2010-03-05

There are so many bad versions of this recipe everywhere but yours really works Thankyou :D

eleanorm3 (author)Chucky462015-12-23

does not it wrecked my cup

I think you used a non-microwaveable cup. Some cups can't go in the microwave, such as plastic, because it could melt or deform.

KristyD7 (author)eleanorm32016-01-15

Use an oversized mug. That cured it from wrecking my mug again!!

scoochmaroo (author)Chucky462010-03-05

Thank you!
I actually experimented with about 6 different variations of the recipe before I decided that this one was the best.

SunainaK (author)scoochmaroo2014-08-31

these things are optional

  • splash vanilla or other flavoring - try peppermint or cinnamon

For a fudgier version, omit egg.

Tarita (author)2012-10-30

for a first timer with zero baking experience, it worked like magic! thank you.

lakins1 (author)2011-11-15

yum! This recipe has come out great all three times I've used it. I love to add cinnamon, chili powder, nutmeg... whatever I have around.

I mix the batter in a small bowl and then pour it into two smaller oiled mugs and cook for about a minute.

In the picture below I added semi-sweet and white chocolate chips. Then melted a bit of the white chocolate and decorated the tops.

jakebaldwin (author)2011-11-13

After some instant microwave cake disasters, this recipe came out great! I've tried a few microwave treats, and this was the only one that came out on the first try. It was delicious! It also looked like it needed frosting. We didn't have any, so I used chocolate sauce.

mishoo (author)2011-10-23

Oh, this is terribly dangerously DANGEROUS to know. :-) My mugs are pretty small, so I made this in a bowl, which required reducing the cooking time to about 1: 45. I omitted the egg for a fudgier result, and it's a wonderful cake/brownie hybrid. I chopped up 3 tablespoons' worth of Hershey with Almond bar, since it's all I had; I also made a glaze with about 3 tbsp. confectioner's sugar and just a few drops of milk. DAN. GER. OUS. It's incredibly rich and I'm not sure I'll be able to eat the whole thing, but dangit, I'm trying.

cattibalistic (author)2011-09-27

I made this recipe using 6 tablespoons of hot cocoa powder in place of the unsweetened cocoa and sugar. IT TURNED OUT GREAT!!!!!!!!!!!!

suayres (author)2011-06-14

I'm playing with your recipe, for one very important reason: I'm a Weight Watchers member, and the recipe as you wrote it is 20 points (I have an allowance of 29 points per day + 49 extra discretionary points to use per week). That's more than I want to spend in one place. BUT the recipe is SO good, that I really want to fit it in to my program. So. A major portion of those points come from the oil (9) & the chocolate chips (3). I didn't want to completely eliminate the chips, but I could cut back to 1 Tbsp (1pt). And I cut the oil to 2 tsps, because I am required to have 2 tsps of oil daily. For the rest of the oil, I subbed--ta da! applesauce! Surprisingly, there was no difference in flavor, and the texture was still good! This knocked the points count down to 11, which I find a comfortable splurge evey now and again. Oh, and one other amendment? I a changed the 3Tbs of milk to 3Tbs of fresh-brewed coffee, for a nice mocha note. All in all, a happy dance for me! It also occurs to me that, for a nice nutty note, you could used toasted sesame seed oil.

TheMightyBeagle (author)2011-02-08

I'm eating this right now... and I LOVE IT! I noticed someone else mentioned using a mashed bananna instead of oil so I tried it that way and used white chocolate chips... all I can think though is "this would be awesome with nuts". Not sure how well nuts would do being nuked. I also noticed other people mentioning the bottom of theirs being burnt and the top not being done. To make sure I didn't run into this problem I put mine in for 1 minute, then stirred it to bring the already cooked pieces up to the top so half of the cake wouldn't be burned. I also nuked it in short intervals (1 minute check and stir, another minute check, 30 seconds etc) to make sure it wasn't burning and also because i'm not sure how powerful my nuker is. When it was done I let it sit in the microwave for as long as I could stand (so the ambient heat would help cook anything that wasn't yet done without burning the rest). Mine didn't puff up out of the mug, but that could either be from the mug or stirring it after a minute of cooking. I think i'm going to try this again tomorrow and instead of a mug use a small glass microwave safe pyrex dish, I think that will help it cook evenly without having to stir halfway. Either way I can't wait to tell my mom-in-law about this she's gonna love it.

milothefultz (author)2010-09-17

Tried it and it was excellent. Kudos for taking some very shady looking recipes from online and making it a sure bet!

P3T376 (author)2010-05-25

bOOm! Or like the romans say: veni vedi vici - a total winner that lil' cupcake! Even I could do it - and that's nothing short of miraculous ;) I was able to use the microwave w/o causing radiationburns on the better part of northern europe AND got a super tasty result. I used 600 watts for approx. 4 mns - and YES - I will do it again... and again...and...

Cheers from germany,


warrnie7 (author)2010-03-28

My masterpiece I made 5 min ago!ta* da*


scoochmaroo (author)warrnie72010-03-29

That is truly a thing of beauty.

TechNerd1012 (author)2010-03-11

love this instructable, turns out awesome cake

i made one yesterday that rose to almost double the height of the mug, but was deflated by the time i got a camera. turned out nice and fluffy though

I experimented with this, and found that pudding mix works great! just substitute any pudding mix for the chocolate powder (and eliminate the chips, unless you want them in there). So far Ive tried strawberry, vanilla, and white chocolate. They tasted great

RenaE1 made it! (author)2017-09-03

My grand-daughter had eaten most of the cake before I knew I needed to have a photo to be able to comment, but it really is the best recipe I've tried (and I've tried several).

Fluff Cat (author)2017-05-22

this was great! I had to use a bowl as all my cups were not very large, but otherwise this was perfect

Bob322 (author)2017-03-05

Rubbish, doesn't work at all, worst recipe there is for mug cakes.

eggyolkchan (author)2017-02-27

my whole house smells of smoke and im amazed i didnt set off the fire alarm. i knew that much oil would be a problem in some way or another.

eggyolkchan (author)2017-02-27


leticia barnes (author)2017-01-28


Simran Sharma (author)2016-12-31

What flour should be used??

leticia barnes (author)2016-12-17

This is the only one that i could find that did not say gleutun free or sugar free so i think that this one is the best one yet.

T0BY (author)2016-11-26


SrishtiD2 (author)2016-10-12

Thank you so much! This really works very well. (Tip: Use an over-sized mug, It can really be a disaster with the small ones.)

JennyK43 (author)2016-10-11

Oh this was great! Came out wonderful on my first try! Definitely a keeper!

SamuelO57 (author)2016-08-09

God awful :/

curbowman (author)2016-05-25

My cake always get stuck to the mug. Is there a way to avoid this? I just don't want to wash away a single ounce of this heavenly cake...

curbowman made it! (author)2016-05-13

AMAAAAZING!! I did mine with rice flour (I can't eat Gluten) and it turned out great. Thank you!

ForeprimeSeo (author)2016-04-04

cancer in one cup

NicoleD59 (author)2016-03-18

Came out great! I added one crushed Thin Mint cookie. I followed the recipe as is and also added a splash of vanilla and a pinch of salt. After I took it out of the microwave, I added a few chocolate chips to the top and it was delicious! I used an oversized coffee mug and it didn't ruin my mug nor did it cook over the sides. Very tasty! Thanks for the wonderful recipe!

NicoleD59 (author)NicoleD592016-03-18

Oh, Used coconut oil and reminded me of a minty german chocolate cake with the thin mints and coconut flavor from the oil.

shamnajeseef made it! (author)2016-02-08

thank you for sharing d ws really yummy!!

Fionaussie (author)2016-01-29


ctownsend8 made it! (author)2016-01-28

my family approves of this food.

Pearlnut (author)2016-01-28


NatureGeek24 (author)2016-01-27

This recipe also works great with gluten free flours (I use King Arthur GF). For toppings I've used cinnamon and sugar before baking; after baking I've drizzled with chocolate sauce, caramel sauce, coffee. Very tasty!

BikeHacker (author)2016-01-19

I just thoroughly enjoyed 2 of these! I found that 3 TBSP of butter is better than oil. Just melt the butter in the mug before you put in the other ingredients.

GRUBDUDE (author)BikeHacker2016-01-27

nice switcheroo there brother.

NeragoN (author)2016-01-10

Hi I really want to try this. Do I use regular flour or self raising flour? Baking powder? Or does it not need a rising agent?

scoochmaroo (author)NeragoN2016-01-12

You can use self-rising flour, or all-purpose + baking powder. Self rising flour has the baking powder already mixed in!

sweetchocolate (author)2016-01-02

how much time do u keep the cake in the microvawe for?

eleanorm3 (author)2015-12-23

this is horrible

I made it and it wrecked my cup

This sucks

SherlynB (author)2015-12-18

I tried this recipe just now (without egg). Part of cakes near the mug taste great, but somehow cakes at the center of the mug are so crumbly and dry! Do anyone know why would that happen? I really wanted that all part of my cake taste great :')

ashervivi88 (author)2015-12-13

Awesome! just made it today and it came out great. i kinda went crazy and added cookie butter and some marshmallows. It tasted a little like a smore. This is the only chocolate mug cake thusfar that is actually good! Thanks!

MenuCheenu (author)2015-05-02

but it was a bit hard but i dont know why!!!!!

olaiyaibukun1 (author)MenuCheenu2015-12-11

yes it was..mine was very hard too and I dont know y

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