Molten Mug Chocolate Cake
Member recipe

Molten Mug Chocolate Cake

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(25 ratings)

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Cooking time


Serves 2

This decadent chocolate cake recipe is perfect for a late night treat. Add a dollop of peanut butter in the middle for an added bonus!

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  • Ingredients
  • 1 coffee mug
  • 4 Tbsp. cake flour (plain, not self-rising)
  • 4 Tbsp. sugar
  • 2 Tbsp. cocoa
  • 1 egg
  • 3 Tbsp. milk
  • 3 Tbsp. oil
  • Small splash of vanilla
  • 3 Tbsp. chocolate chips, optional
  • 1 teaspoon peanut butter, optional


    1. Add dry ingredients to mug, mix well with a fork.
    2. Add egg, mix throughly.
    3. Pour in milk, oil and vanilla, mix well.
    4. Add chocolate chips if desired. Push a dollop of peanut butter into the center of the batter if desired.
    5. Put mug into microwave and cook for three minutes on 1000 watts. Cake will rise over top of mug. Allow to cool for 2 minutes.

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Show comments
beagelder's picture

five stars for fun, and watching it rise is almost as fun as watching popcorn! howves.... little dry no way needs three mins more likes two... still pretty nice friday nine oclock fix to the munchies from store cuboard ingredients ... what a great evening in with the kids serve with a chilly glass of milk to fix all the above problems! DELISSSHHH!

still going to go corner shop and get a choccie bar though...

camraguybeer's picture

I just made it with melted butter instead of the oil, demerara sugar, self raising flour and a handful of black cherries and cooked it in a huge mug for 2mins 30 and it was very nice - light, fluffy and chocolatey - may knock off a little time to get it more gooey next time

john_coller's picture
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As above, but with added walnuts, raisins and ice cream.
2mins in 900w microwave and it came out really good.
(plain flour and sunflower oil used).

willdp's picture
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Worked out ok, next time I would use some milk chocolate in the middle to give it a chocolate flavour. Its not a dreadful recipe but adding a little baking powder made it rise nicely, which seemed to be many people's complaint.

becca111090's picture

I found that the cake was really rubbery so decided to experiment. i melted butter instead of the oil and added 3 tbsp of the melted butter and it worked really well. A little more fiddley and time consuming but i reckon its worth it in the end!!

bambini's picture

I just had a go at this and it was just perfect with no tweaking other than cooking time, I have 800 w microwave and cooked for 2.5 mins.
I will definately make this again but would try in a pudding basin to serve a few people rather than just the one chocoholic!

wetday's picture

I suppose you can't really expect much from this recipe and that is exactly what you get. It reminded me - comfortingly - of the brownies included in the TV-dinners of my youth. Spongy and strange, indeed, but reassuringly chocolaty.

Used an 800w microwave, and cooked it for too long to compensate for lower wattage. If I were to make it again, I would cook it for less time.

This would be absolutely fine drowned in ice cream and hot fudge. Oh, well: another night, perhaps.

sukiew's picture

Worked perfectly! I used a bit more sugar, though, which made quite a differnce, apparently. A word of warning though: if you aren't going to use a large mug, i suggest you put something underneith it before it goes into the microwave. We lmost couldn't get it out!

shiningstar479's picture
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i made mine with the alterations suggested worked well but think next time will try 2 mins instead of 2 1/2 mins, on 800w oven. i used a large mug so think it will be trial and error but will definately make again as it is a quick chocolate fix

discobirdy's picture

This is delicious but like Cake Monster said it DOES need the Self-raising flour and DON'T cook it for 3 mins! We have a 700W Microwave and 2 mins is perfect. It turns out like a melt in the middle chocolate pudding that is everso slightly bitter but also sweet enough to not be too sickly. YUMMY!

salterge's picture

mmmm i used the tweaks suggested and turned out great! it didn't rise as much as i had anticipated but it looks and tastes ok. Would reccomend some chocolate in the middle as the peanut butter tastes a bit weird, and i agree with BH, you could tottally use this as a kind of jam/choc sponge recipe with the topping on the bottom.

francescalouise's picture

And by the way, the pictures is a JOKE.

francescalouise's picture

These suggestions for tweaking the recipe are great, but isn't the point of a recipe on a website entitled GOOD food to tell you how to make something that doesn't turn out like a chocolate flavoured wetsuit? I think it needs to be taken off the site in order to prevent anyone else from going through the ordeal.

linzi1973's picture
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I agree with Pete... use self-raising flour , it works a treat !

djmassive's picture

To those whose cakes turned out unexpected... please please please use self-raising flour! I made this for the first time tonight and it was 110% spot on! Doesn't fit in a mug; lmao, but spot on. Would be very nice with chips or dark choc... served with vanilla ice cream maybe?

merryhel's picture

What sort of oil are you all using?

sharten's picture

Just used the alterations suggested by cake monster.. YUM!
Brilliant recipe :)

bridgetharris's picture

I agree with cake monster this does work if tweaked. I also used self-raising flour (wholemeal) and soft dark brown sugar (prefer the taste). Whisked wet ingredients together with fork before whisking into dry ingredients. Mixed in some broken squares of dark chocolate - you can put these in the middle if you want a melted chocolate centre. Used 1 pint pudding basin instead of mug and cooked for 3 mins in 800w microwave. It was good but next time I'll try 2.5 minutes to try and keep texture very slightly gooey even after cooling period - just my preference, if you like standard sponge texture 3 mins is fine as cake monster says.

Very quick and easy to make and fun to watch it rising in the microwave. Also pretty instant gratification!

It would work well as a pudding with choc sauce, peanut butter sauce, cream, icecream etc. If made in pudding basin can be turned out - easier if grease basin before mixing or line with cling film.

baldwing's picture

please don't be discouraged - this recipe DOES just needs a few tweaks! i used self-raising flour (no peanut butter though), mixed all the 'wet' ingredients separately and then mixed them into the dry - just like making muffins - and then dolloped the mixture into the mug, and trust me it works a treat! i don't have a 1000w microwave either, but 3 mins was just right for a 800w version. have another go.....its worth it :)

cutsiemutsie's picture

My rating for this recipe would be 0 out of 5 stars. What a good way to waste 5 minutes of my life and get excited about nothing. I had high hopes when mixing, and watched excitedly as it rose in the microwave; but shortly after rising if collapsed back into the cup. I removed it from the microwave after 3 minutes and found that instead of the fluffy, decadent cake I was promised, I had a mass of heavy, rubbery, mug-shaped trash. I feel the need to say, "I want my money back!" But at this point I'd settle for just getting the taste out of my mouth...