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This is absolutely, 100% the best microwave cake I have eaten in my life.* It takes 5 minutes to throw together and it tastes like sugar cookies and the texture is like REAL CAKE. I was watching Masterchef AU last night and Matt Preston was making a microwave sponge cake that involved passionfruit pulp for the liquid in the recipe. I was instantly excited. It looked great, and I needed it!

But there were problems: how much liquid is one passionfruit? what's the right amount of flour and baking powder if I'm not using self rising flour? how do I convert all the measurements so US readers will find it easy to make?

so I stayed up and experimented and then - PROBLEMS SOLVED

*Full disclosure: I am pretty much an expert in microwave sweets. I swear I've spent about a fourth of my adult life up late and making questionable food decisions.

P.S. Feeling like chocolate cake? Check out my chocolate microwave cake here!


Step 1: ingredients:

  • 1/4 cup melted butter (50 g)
  • 1/4 cup sugar (50 g)
  • 1/2 cup flour (50 g)
  • 1/2 teaspoon baking powder
  • 1 egg
  • 2 tablespoons milk

The recipe above will serve two people - double for four cakes. That's what I was making today!

You will also need standard ramekins, cooking spray, plastic wrap and a microwave.
Just tried this <br>Really cool, thanks for uploading! <br>I can't upload pictures here so here's an imgur link <br>On average 40-50 seconds on a 1100 Watt microwave worked for me <br>http://imgur.com/HjAU2uo
Totally easy, totally awesome. Worked the first time for me and was yummy!
OMG! I made this today, it's amazing! Loved it! I could live off it!
I tried this at home today, and I LOVED it. I shared the amazing cake with my family and the were very happy, THANKS :-)
<p>Awesome and so quick. Made it for my boyfriend and he complained he didn't want desert. Then I looked over and it was all gone. Success</p>
Made this cake today. It'super easy and delicious! I doubled the measures and made it as one whole cake. Microwaved it for 6 mins in a 800 watt microwave.
<p>I love treacle pudding, so tweaked the recipe into that. After it cooked (in 1 large mug in the microwave) I poured Lyle's Syrup over it, and topped it with custard. Yum!</p>
<p>Imperial measures may work, but metric are off. Given that a stick of butter is 113 g, quarter cup is 56-57 g. One cup of flour is about 130 g, so half would be 65 g.</p>
<p>you did WHAT to your strawberries</p>
I wish I could make this but, the only ingredient I have is eggs and milk
<p>Very Good. I made it in a large microwave safe bowl. I added a touch of almond extract and used vegetable oil in the same amount instead of butter. It cooked about two and a half minutes. Then I pressed butterscotch chips into the cake after cooking. </p><p>ItIt was </p>
<p>super delish!! i mixed it all in a mug and microwaved for 1.5 minutes. also if you ad 1/4 cup coconut and a bit of lime juice on top when its cooked my gosh sooo good!! </p>
Hi again can i use baking soda instead of baking powder
<p>Maaaaybe. I haven't tried it. 1/4 teaspoon of baking soda and a splash of vinegar - that could work!</p>
Hi, i want to try it but i don't have plastic wrap, does it matter?
<p>Try making it in a mug instead of a ramekin if you don't have plastic wrap. Hopefully the mug will be tall enough that the cake batter won't climb over the sides!</p>
<p>I will DEFINITLY try this</p>
Love the recipe. Added chopped raisins, almonds, lemon juice and lemon rind to my taste. Also, baked in one container. Thanks for the yummy recipe! :)
can i make a big cake with this batter?
<p>Perhaps! I've never tried. If you want to give it a go, I'd suggest doubling the recipe and cooking it in a 8 inch pan. 325 F for 20-30 could work. :)</p>
can i make a big cake with this?
I love it but it makes it so much better if you add a dash of vannila to the recipie and put powdered sugar on top!
Great but unhealthy srry i already ate it
<p>Honestly, Is there such a thing as a &quot;healthy&quot; cake? </p>
It is 3 in the morning and I needed a snack so I made this. Successfully. I put in about half an egg more in the mix and then whipped it with the teaspoon I had used to measure out the milk. Then put in 3 tablespoons in a cup and microwaved it for 1min. The result was the cake just like in the photo. I did not use any oil to coat / line the cup and as a result there was just a thin layer sticking to the cup. The taste however was not super great. It was spongy but it was just the slightest sweet. Do you add any flavors. Or is it just some base onto which some toppings like whipped cream or fruit need to be added - as you did? <br>Two more things. <br>1. A suggestion. Please refrain from using oil spray. They use aerosols for it and it is the same thing (same grade even) that is used in sprays from deodorants to shaving cream spray cans. <br>2. Thank You for this wonderful recipe. This would act as a base for me and now I shall experiment to get the flavor right for my palate.
<p>Just like isochronous, I can't help but say something about this post. With regards to suggestion 1, why would you want to tell anyone how to act or what to say period. If someone wants to use aerosols, its no one's business but their own. I find busy body's like yourself intrusive and completely unnecessary. Keep it to yourself!!!</p>
<p>Sorry, but I just had to reply to this, because this is a &quot;guilt by association&quot; logical fallacy. Just because an aerosol is used in spray deodorant doesn't mean it's harmful. The four most common aerosol propellants in oil sprays are food-grade alcohol, nitrous oxide, carbon dioxide, and propane, none of which are harmful in any of oil spray's standard applications.</p>
<p>I like your food they look good</p>
<p>turn out great.. best texture from a micro cake...<br><br>i added chocolate chips on top</p>
<p>Great recipe. So easy n yummy. Thank you!!</p>
It was great! I added some peanut butter, added less sugar, and it came out amazing! I even made a chocolate icing to go with it! I recommend you all do the same!
<p>I regret that you did not state how much time to cook it in the microwave or at what power level. I wanted to make this but I couldn't without time and power level.</p>
<p>I did list times - and power doesn't make as big of a difference as you think!</p><p>"Cook in the microwave for 50-60 seconds. (At home, it took me 60 <br />seconds in a 600W microwave. In the test kitchen, 55 seconds in a 1000W gave me a good result.) Too <br />little time, and the cake will be wet on the outside. Too much time, and <br /> it will become really crumbly. Also, cooking them individually is best."</p>
I apologise! I wrote the note before I noticed that I needed to turn the page. I then clicked on delete for the note, but it did not delete. I read the cooking time, but stilll didn't see a power level.<br><br>Thanks for your reply.<br><br>Bill
It is 3 in the morning and I needed a snack so I made this. Successfully. I put in about half an egg more in the mix and then whipped it with the teaspoon I had used to measure out the milk. Then put in 3 tablespoons in a cup and microwaved it for 1min. The result was the cake just like in the photo. I did not use any oil to coat / line the cup and as a result there was just a thin layer sticking to the cup. The taste however was not super great. It was spongy but it was just the slightest sweet. Do you add any flavors. Or is it just some base onto which some toppings like whipped cream or fruit need to be added - as you did? <br>Two more things. <br>1. A suggestion. Please refrain from using oil spray. They use aerosols for it and it is the same thing (same grade even) that is used in sprays from deodorants to shaving cream spray cans. <br>2. Thank You for this wonderful recipe. This would act as a base for me and now I shall experiment to get the flavor right for my palate.
<p>Since this was a double post, see my above reply for why suggestion #1 is unnecessary.</p>
<p>I made this cake and I'm adding a photo of what I did. I made a mini layer cake out of it and frosted it with butter cream and sprinkled some finely ground walnuts on top! It turned out really good! Moist and delicious! I also added a half teaspoon of vanilla. Thanks for this recipe.</p>
<p>Thanks a ton for this recipe, it is the best I've seen so far and was delicious. I enjoyed it so much I will feature it on my blog. I hope you don't mind, here's a link if you'd like to see how I used it. http://www.disnaijagal.com/?p=245</p>
<p>Thank You for the perfect mug cake recipe. </p>
<p>i have it topped with strawberries and blueberry and plans to create more of these.. yummy..</p>
<p>Oops...</p>
<p>This is very helpful. Please excuse the account picture. I am using my son's email address. Do you have a microwave recipe for carrot cake?</p>
These cakes were great and easy. They turned out exactly like the picture.
Cake was gone in 3 minutes
Awesome! Even my picky little brother approves!
<p>you have to try it, amazing!!</p>

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