The Moistest Chocolate Mug Cake


This is the moistest chocolate mug cake you will ever have. It’s not spongey or dry like other mug cakes! I personally tested this recipe FOUR times to finally achieve this amazing texture!

Updated 9/26: recipe video added below! :)

The moistest chocolate mug cake you will ever have! It's not spongy like other mug cakes! Recipe on

The moistest chocolate mug cake you will ever have! It's not spongy like other mug cakes! Recipe on

Ok, so you’re probably so over mug cakes and you’re probably rolling your eyes at me right now but STOP! I promise you this isn’t like any other mug cake out there. I’ve tried a bunch of mug cakes and I hated them. I thought they were a really neat concept for a quick dessert fix but nothing would ever beat baking an entire cake or cupcake. I hated that all the mug cakes came out SPONGY and they had the grossest texture.

The moistest chocolate mug cake you will ever have! It's not spongy like other mug cakes! Recipe on

Last week, I was CRAVING chocolate like none other. It was a pretty dire situation. We didn’t have any desserts in the house because I hadn’t been baking and I didn’t want to run out to get anything so I thought I’d give a mug cake a shot. It ended up turning into a recipe development hour because the first batch came out horrible. Like, I threw it in the trash can and it was just one lumpy sponge thing. The second one was slightly better but still really bad. The third, I switched out some ingredients and added a little bit more of some and it came out how I wanted but I knew it could’ve been better so on the fourth try, I finally got it to work and the exact texture I wanted.

Here is a quick little video! Be sure to grab the recipe below :)

The moistest chocolate mug cake you will ever have! It's not spongy like other mug cakes! Recipe on

You guys, this is the moistest chocolate mug cake I’ve ever tasted before. I’m not joking! You have to try this and see for yourself. It’s a great alternative to baking an entire pan of brownies & it’s a super awesome quick fix for that chocolate craving! Jason loved it and said it tasted like brownies! Yay :)

The moistest chocolate mug cake you will ever have! It's not spongy like other mug cakes! Recipe on

I mean seriously. How could you not want to drop everything and go make this immediately?!

The moistest chocolate mug cake you will ever have! It's not spongy like other mug cakes! Recipe on

The moistest chocolate mug cake you will ever have! It's not spongy like other mug cakes! Recipe on
The Moistest Chocolate Mug Cake
Prep Time
1 min
Cook Time
1 min
Total Time
2 mins

This best and moistest chocolate mug cake you will ever have. It's not spongey or dry like other mug cakes! You will never use another chocolate mug cake recipe again!

Servings: 1
  • 1/4 cup all-purpose flour
  • 2 tablespoon unsweetened cocoa powder
  • 1/4 teaspoon baking powder
  • 2 tablespoon granulated sugar (you can add 1 tbsp. more if you like it a bit sweeter)
  • 1/8 teaspoon salt
  • 1/4 cup + 1 tbsp. milk
  • 2 tablespoon vegetable oil
  • 1 tablespoon hazelnut chocolate spread
  1. In a medium bowl, whisk together dry ingredients.
  2. Whisk in the milk and vegetable oil until all ingredients are combined and batter has no clumps.
  3. Pour batter into a microwave-safe mug. Mine was a 14-ounce mug. You want enough head space for the cake to rise without pouring over.
  4. Add 1 tbsp. of hazelnut chocolate spread in the middle of the batter. Just drop it in the middle, no need to push it down and sink it in the batter.
  5. Place a paper towel into the microwave and set the mug on top (this is to catch any batter if your mug cake overflows).
  6. Microwave mug cake for 70 seconds on high (PLEASE READ NOTES CAREFULLY BELOW)
  7. Carefully remove from microwave and enjoy!
Recipe Notes

Please note that ALL microwaves are different therefore can yield different results and can overcook this mug cake if you aren't careful. My microwave is 950 watts and I cooked mine on 100% power for 70 seconds. Knowing this information, it may help you better judge how long to cook yours for and at what power.

You can totally omit the tablespoon of chocolate hazelnut spread if you want or use a different spread of your choice (peanut butter, biscoff, etc.). I just thought it made the cake even more moist but the cake itself is moist enough without it!

**This recipe is specifically made for the microwave. I developed it for the microwave. I don't know cook time or temperature for an oven...I'd imagine it'd be a very quick cook time at a low temp., but since I didn't test the recipe for an oven, I cannot give specifics. Sorry!

No eggs? Correct. There are NO EGGS in this recipe. Why? Egg is what makes the mug cake spongy. If you think about it, when you bake a full-sized cake, you typically use 1 or 2 eggs...for a mug cake to use 1 egg is A LOT!

Self-rising flour? I have tested this with self-rising and it does NOT work. At least I felt it didn't work because it was too spongy for me. You are more than welcome to use it, however, please keep in mind that I don't recommend this method.

If you're looking for a VANILLA version, here is the link to The Moistest Vanilla Mug Cake recipe!


Posted on February 24, 2014

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  1. Naoise
    01/07/2017 at 12:30 pm

    I just made this and it was SO GOOD, thank you so so so much ❤

  2. Teresa
    01/07/2017 at 3:04 pm

    I just made this cake with my 10 year old son so he can use it for his 4H demonstration! It turned out great and he loves it :) Thanks for the recipe!

  3. Aminata
    01/08/2017 at 1:38 am

    Is there a reason you used oil instead of butter?

    • Julie
      01/09/2017 at 4:52 pm

      I wanted a cleaner taste.

  4. Beatrix
    01/08/2017 at 11:06 am

    Hey! This recipe is fabulous I used caramel instead of a hazelnut spread and I’m hooked it is the best chocolate mug cake recipe EVER!

  5. Bertha
    01/08/2017 at 3:59 pm

    I’m so glad you took the time to develop this recipe! Absolutely delicious!

  6. Isaac
    01/08/2017 at 8:18 pm

    I just made this for my whole family for dessert. At first they were very skeptical but it camwas out great! Best mug cake recipe I’ve found. Not rubbery or too thick or spongey like the others. Thank you!

  7. louise
    01/09/2017 at 7:12 pm

    can someone help me out please. whenever i try to make a mug cake (this included) it always comes out tasting really bad, like a really dodgey raw flour taste, i know im deffo not undercooking it, what am i doing wrong?

    • Erin
      01/13/2017 at 11:39 pm

      Did you try sifting the flour? Helps to reduce clumps and when it’s mixed into the mug it is evenly distributed :)

    • Erin
      01/14/2017 at 1:16 am

      i just wanted to say WOW!!!! I have tried putting together countless chocolate mug cakes and this is the ONLY one I have found to be delicious and moist and perfect!! Thank you so much for your post .. will be saving this article and using it again…and again and again… :)

  8. Hazel
    01/10/2017 at 7:59 am

    Your recipe is sooooo good!

  9. Omi
    01/11/2017 at 1:10 am

    Just made this and it was delicious! I didnt have hazelnut spread but I dropped a truffle in the center and it came out like a lava cake! Will make often, family loved them. Thank you!!

  10. Blaise
    01/13/2017 at 3:38 pm

    This was so good! Very chocolately, I had to double the recipe though. 10/10 will definitely make again!!

  11. Kara
    01/14/2017 at 2:42 pm

    Is there any way to make it without milk?

    • Kara
      01/14/2017 at 2:52 pm

      actually I tried it and if you add 4 and a half tablespoons of water instead of milk if tastes basically the same!

  12. Debbie
    01/19/2017 at 12:12 am

    What a fabulous recipe!!!!! Thank you so very much! I was having a total chocolate craving and this was the BEST little cake ever! (((Hugs))) Simple and yummy, soooo yummy!

  13. Jazmin
    01/20/2017 at 12:08 am

    The texture is SPOT ON!!! Not spongy at all, very moist, great flavor.

  14. Tegan
    01/20/2017 at 6:10 am

    Oh my God. Thank you. And I hate you. This is hands down the best mug cake ever. Was in the same predicament, craving chocolate and had to improvise. Then i stmubled across this magical recipe. Can see this becoming a regular late night treat. Superb!

    • Julie
      01/20/2017 at 7:35 am

      Haha, I thought this comment was going to go the other direction. I’m glad you like it so much :)

  15. Girly Swede
    01/20/2017 at 9:13 pm

    I love your recipe so much!!! It’s the ony one I use when I’m craving somethin like this… Thank you so much!

  16. Aishwarya G
    01/21/2017 at 10:49 am

    I was just wondering if anyone used cold milk, or you warmed it up?
    I put cold milk, and almost doubled the time in the microwave. It is 1000W and after 70 s, it only rose didn’t cook much.
    Even after adding some time inside, and checking it still didn’t look like yours. Left in the microwave hoping that the heat would let it cook. But, then I put it on the cake mode for 2 minutes and it’s very gooey and completely uncooked.
    Does adding slightly extra milk do this to it?

    • Julie
      01/22/2017 at 8:39 am

      I used cold milk, and yes, if you add more liquid to it, you should cook it longer.

      • Aishwarya G
        01/22/2017 at 9:01 am

        But even after cooking for a long time, it was very gooey and was very viscous. If you put a spoon in, it was very thick.
        I made a different mug cake with correct amounts this time and it was better than the first try. But it was still slightly wet / slimy around the sides although I added about 20 seconds to the cook time. Even the centre was a bit sticky

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