Molten Mug Chocolate Cake
Member recipe

Molten Mug Chocolate Cake

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(29 ratings)

Member recipe by

Cooking time

Servings

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

  • 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

Method

    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.

Comments, questions and tips

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Comments (68)

princessalex1981's picture

AWFUL. Don't bother. A real dissapointment.

Melissa110's picture

If you want this to taste amazing and be like a real molten chocolate cake after making the mixture mix 1 teaspoon of cocoa and 2 of sugar then sprinkle over the top and add hot water over the cocoa and sugar then cook omg it's amazing (also no need to mix the cocoa-sugar and water together or into the rest of the mixture)

Jewells86's picture

I'm not sure what everyone's issue was. Tastes like a mug cake to me. I added a 1/2 tsp of baking powder and scaled back the sugar by half. Also, only went 2 minutes in the microwave.

Tazzy275's picture
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I took everybody's advice and it came out perfectly. I used golden caster sugar, self-raising flour and 3Tbsp melted butter. I mixed the dry ingredients (same measurements as the recipe) in a bowl and the wet in a jug. I then poured the wet in the bowl, mixed and added chocolate chunks and 1tsp peanut butter. I microwaved it in the bowl for 1.50min. Great with vanilla ice cream. This method 5*.

eatbananasbananas's picture

Have registered just to say how awful this recipe is! Save the ingredients and spend your time and money making a proper cake! Was like eating chocolate rubber, in fact chocolate rubber would probably taste better!

mother_ship's picture

Dire! Rubbery and dense, waste of ingredients :-(

elroad's picture

Dreadful! I really should have read the comments below before I cooked this. It was awful. Don't bother cooking it - you'll. be disappointed.

laljokhadar's picture

I had high hopes for this. It tasted like burnt flour. I followed the instructions exactly. I even checked the wattage of the microwave and adjusted the power level to 7, since the wattage was 1480 W. It was also rubbery and very dense. No molten centre. I would love to find another recipe for this type of cake so if you can direct me to another recipe that works, or adjust this recipe so that it is not gross, i would appreciate it.

taramc_a's picture
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Was looking for an easy chocolate cake recipe and thought that this would be perfect, that was until I had actually made the cake. I followed the recipe exactly (without using chocolate chips or peanut butter). There was far too much egg as in the first minute or so in the microwave, the mixture was spilling over the top of the mug. I waited for the full three minutes and when I turned the cake out onto a plate after about a minute or two of cooling, I was face with a dense, rubbery chocolate mess. I did not read the comments before deciding to make this cake, but I will definitely read them before I try another recipe.

SueLorne's picture

Made this yesterday and will not be making it again unless I have an urgent need to create rubber! Maybe one of the recipes suggested by other users is worth a try - but I wouldn't waste the ingredients following the main recipe - a lot of people seem to say there was too much egg - I used medium eggs, maybe small would work better.

franny0010's picture

Just made this, its a nice tasting mixture but 3 minutes cooking time totally nuked it and it was horrible! I then tried with 2 minutes and it still was over cooked but moist, next time I will try for 1 minute and hope it has the molton centre. I do wish I hadn't found it as now I have chocolate cake in under 5 mins, not good for the diet :( It did need to be eaten straight away as it did become harder the longer it was out of the microwave.

Ktjd's picture
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Well it worked well for me with couple of tweaks inspired by the comments and addition of coffee to give a mocha edge! But I was determined to mix-make-bake it ALL in the one mug as that's the point, so no separate bowls for me...

I used self raising flour (think it def needs to be SR or plain with baking powder) but as I have coeliac's, it was gluten free... Plus 3 tbsp caster sugar, 2 tbsp cocoa powder - mixed really well in mug.
Added one egg, and again mixed v thoroughly until a paste.
Added 3 tbsp sunflower oil and then 1 tsp instant coffee dissolved in 3 tbsp semi skimmed milk. Another good mix. No extras and cooked 2.5 mins in 800w machine on full power... Yum scrum!
PS. I made it in a humongous 500ml Cath Kidston mug (not sure the brand made much difference but it did look pretty ;)

emmap91's picture
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3 minutes is WAY too long. It came out horrible and rubbery, put me off trying to make it again!

Alexhopkinson's picture

After looking at the comments I've come up with the perfect recipe that produces a light, moist chocolate sponge cake (although not molten)
Recipe:
4tbsp self raising flour
2tbsp soft light brown sugar
2tbsp caster sugar
2tbsp cocoa powder

Approx 2tbsp of melted unsalted butter (I say approx as I just cut off about a 1/2 cm slice off of a block)
Splash on vanilla extract
4tbsp milk
1 egg

Method:
Mix the dry and wet ingredients separately then mix together (I would do this in a cereal bowl)

I then poured half the mixture into a mug and added a few chocolate chips and put in the microwave for 1 min on 900w

The only issue I found was the chocolate chips sunk to the bottom however this could be rectified by coating the chocolate chips in flour before adding

And done, the only thing I would do next time is add a scoop of ice cream once done but I didn't have any at the time!

Hope this works for everyone

naiseyj's picture

I just made this and it tasted great. Did exactly as the recipe said. Only used the one mug and cooked it for the 3 minutes. Turned out beautiful, raised nicely and was light and fluffy. Didnt add the peanut butter but did use the choc chips. Won't hesitate to use it again

Purplecrazyhorse's picture

I made it without chocolate chips but only cooked for 1min 30secs in our microwave (800w) so there was a bit of goo still in the mug (yummy). Cooking for the full 3 mins made a very dense cake, hot and quite tasty though, but I found it dry. Hence trying again but not cooking for so long!

riogg's picture

I made this last night and, I'm not going to lie, I ate the whole lot! Although I did make it in a bowl (there is no way this mixture would fit in a mug!) and with self raising flour instead of plain. 3 mins would be too long in my 800w but 2 mins was ok. Today I made this as an after school snack and split the mixture between two mugs and cooked for 1 min each. It's not a "molten" cake, but for a quick chocolate cake fix it's great (especially when you put orange flavoured chocolate spread in the middle!).

BooRadley99's picture
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This was not a success for me. I didn't read the comments first, and probably should have.

Firstly, there is WAY too much egg in this. I made the recipe exactly according to the instructions, split the mixture between two mugs, and microwaved the first for two minutes. It came out a solid, dense, rubbery mass. I swear if I had dropped it, it would have bounced.

The second time I microwaved the mug for 40 seconds. It was much better - slightly gooey in the middle - but still way too rubbery and dense because of the egg. This recipe has no leavening agent in it at all either, which is unusual. I also found the oil gave it a really strong oily taste.

If you're going to attempt this recipe, be prepared to experiment until you get it right. I'd recommend lightly whisking the egg (just enough to combine white and yoke, not to make it frothy) and only using half of it, and try to avoid overcooking. My microwave tends to just blast everything with near-nuclear heat, so it helps to know your microwave. If I give this another go, I might try half plain flour and half self-raising.

erynsmum's picture
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Haha, I dropped the top of mine and it actually bounced!

I wish I had read the comments before I started as I just used the last of the cocoa :(

fenellabella's picture

Very tasty... Perfect for a mid-week treat! I made it in a small bowl instead of a mug and added some mini-marshmallows! I also only had self-raising and it still worked out well. Gooey and spongy! :)

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Questions (2)

Hannah555's picture

Do we have to use vanilla??

erynsmum's picture
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no, it is optional

Tips (4)

erynsmum's picture
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Don't bother!

There was NO molten bit, it was so dense and spongy.

marbo's picture

You people seem to have missed a very important part of the recipe title. It is a MOLTEN cake, which means it is NOT a regular cake! It should be gooey, not spongy! Molten cakes have a runny center. Do not add baking powder or use self-rising flour! I agree the 3 minutes sounds too long. I would start with one minute. It should test done around edges, but center should still be soft. And using 1 tsp. baking powder for this amount of cake sounds awful!

For the quickest, easiest regular cake, I mix 1/4 c. cake mix and 2 tablespoons water in a mug with a tiny whisk. Smooth out top and nuke for 30 seconds. Yumm! Add a tablespoon of frosting, ice cream topping, PB, or nutella to top of batter before baking for a gooey pudding cake! Have also made muffin mixes this way, but they use only 1 1/2 tablespoons water to 1/4 c. mix.

marzipanfeind's picture

This worked well for me. Using SR flour gives a better rise, and soft brown sugar makes it fudgy. Mine took about 2 minutes (800W microwave) and I made it in a cereal bowl after reading all the comments, but it would have just fitted in a large mug. Maybe the people who found it overflowed used heaped tablespoons of everything, rather than level ones? Like most microwaved cakes, it needs eating straight away.

marzipanfeind's picture

Made this again last night, this time sticking to plain flour. I suggest you try it! It's clearly how it's intended to be - dense, fudgy (brown sugar helps) and molten-centred. Used 2 tbsp dark brown soft sugar and 2tbsp light brown soft sugar. Using SR flour or adding baking powder gives a more classic cake texture, but I like it like this! It makes plenty for two, as well.