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!

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.

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

Yields 1

The Moistest Chocolate Mug Cake

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!

1 minPrep Time

1 minCook Time

2 minTotal Time

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  • 1/4 cup all-purpose flour
  • 2 tbsp. unsweetened cocoa powder
  • 1/4 tsp. baking powder
  • 2 tbsp. granulated sugar (you can add 1 tbsp. more if you like it a bit sweeter)
  • 1/8 tsp. salt
  • 1/4 cup + 1 tbsp. milk
  • 2 tbsp. vegetable oil
  • 1 tbsp. 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 Type: Dessert


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. Mako
    09/21/2016 at 1:29 am

    Added a pinch of baking soda. Horrible idea, because half of my cake ended on the microwave plate. The remaining half in the mug was delicious and fulfilled my need for comfy chocolate. Yay for this!

  2. Amara
    09/21/2016 at 2:31 am

    I’ve never commented on a recipe post before, but at 2:30 am the night before an exam, this is legitimately the best thing EVER! I sprinkled coffee in there and its amazing! Thank you!

  3. Deborah
    09/21/2016 at 4:01 pm

    This has been my go-to chocolate cake for the last 12 months. It literally put me through grad school and the extra pounds were worth it. Today I had it again and I felt the need to come and say Thank You for sharing this delicious recipe. Thank you so much!

    • Julie
      09/21/2016 at 6:51 pm

      <3 <3

  4. Brittney
    09/21/2016 at 10:27 pm

    Made this one night for my kids and now – 12 days later – it’s been requested EVERY night since then. Thank you for the great recipe! I’m eating it now – warm with vanilla ice cream. Yum!!!

  5. cindie
    09/22/2016 at 2:51 am

    Okay so by the sounds of everyone saying it was delicious I had to try it out for myself! Unfortunately, it wasn’t fantastic for me which made me really sad. It looked delicious and promising but the first bite just wasn’t what I was expecting. It wasn’t very sweet or chocolatey which is what I was hoping for. I was so sad! I know I did everything right and my measurements were right as well, but I just don’t know! :( if there is anyway I can make it more chocolatey or sweet please let me know!

    • Julie
      09/22/2016 at 7:28 am

      Did you see in the recipe that I mentioned to add 1 more tablespoon of sugar if you like it sweeter? If you like things more sweet, add more sugar and to make it more chocolatey, I would add chocolate chips in addition to the hazelnut spread in the middle.

  6. Rachel McMahon
    09/22/2016 at 11:22 am

    So made this last night when I had a intense chocolate cake craving and it was almost better than really cake! Supper moist and a rich chocolate flavor. I had to substitute a few ingredients because I was out of some. So if anybody is wondering whipping cream and a bit of water substituted for the milk works just fine and a mixture of un sweetened cocoa powder and Hershey’s special dark is still pretty freaking tasty!

  7. Shenandoah
    09/22/2016 at 5:15 pm

    Have made this a couple of times now. First time was by the boom and it was wonderful. The second time I was out of oil and substituted mayonnaise (eggs and oil) and it still came out great. This time I threw a handful of marshmallows at the bottom of the cup first. They rose to the top and I needed a bigger cup but it was great. They did make the cooking time a little longer but it was just like a lava cake but with marshmallows.
    Will be trying it with my friends homemade mint syrup next just to experiment. :)

  8. Megan
    09/22/2016 at 9:45 pm

    Delicious! I’ve never tried a mug cake before and just needed something sweet one night and these are all ingredients in the pantry! It really hit the spot. It was rich and moist and I didn’t even use the hazelnut spread. Thanks!

  9. Page Fulton
    09/22/2016 at 10:26 pm

    I’ve been making this mug cake for a year – never fails! Once you get your microwave timing right, you’ll never want to risk trying another chocolate mug cake again! So many topping varieties – but our favorite is whipped cream and candied pecans.

  10. pierre
    09/23/2016 at 11:14 am

    absolutely amazing, moist just as you said. it was a great last minute midnight snack!

  11. Amy
    09/24/2016 at 6:09 am

    Great recipe! Followed it to the letter EXCEPT instead of Nutella I added chopped up marshmallows and sort of poked them under the batter once it was in the mug. I also used a Magic Bullet to mix the batter, which made it even quicker to prepare. It was delicious!

    • Julie
      09/24/2016 at 7:53 am

      What a great idea to mix it in the magic bullet! I bet it made it fluffier too.

  12. Naomi
    09/24/2016 at 7:44 am

    I usually don’t bother posting comments. I was skeptical of this recipe being the best and moistest, a bold call to make. I’ve been searching for the best chocolate mug cake for at least a year.
    I’m no longer skeptical. This recipe is absolutely perfect and it most definitely produces the moistest and best chocolate mug cake EVER.
    I added peanut butter instead of hazelnut spread and next time I won’t bother, because it doesn’t need it at all.
    Thank you for creating such a divine recipe and getting it so right.
    Forever grateful, I will be making this again and again.

  13. Emilia
    09/25/2016 at 4:53 pm

    This is the best mug cake ever, seriously! I also tried adding coffee in it and turned out delicious, thank you for the recipe!

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