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

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.

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.

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

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

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. Jill
    06/11/2016 at 10:35 pm

    Made this recipe today (my 4th attempt) and added semi-sweet chocolate chips this time (about a heaping tablespoon) and lessened sugar by a quarter. My husband said it’s the best batch by far and that it’s the best chocolate mug cake recipe (I’ve tried many—especially those with egg in it) on the net!! Paired it with vanilla ice cream and we were in mug cake heaven. ;)

    Thank you for sharing this recipe. Perfect way to satisfy that sweet tooth craving.

  2. Jennifer
    06/12/2016 at 2:54 pm

    This is literally my favorite mug cake of all time, thank you so much for this recipe. Now I can curb my chocolate cravings will a single serving. Witout this I would probably eat way more than I should. I’ve tried so many other mug cakes and they turned out plain and dry but this one is just like cake with the gooey nutella. 5 star rating from me!

  3. Dimitri
    06/13/2016 at 2:25 pm

    Amazing recipe! Tried a mug cake for the first time with this and the result was so delicious! Thanks a lot! :)

  4. Sandy
    06/14/2016 at 4:26 pm

    This was wonderful. I subbed out vegetable oil for coconut oil and only added the 2 tablespoons of sugar; it was just sweet enough to satisfy my chocolate craving. Thank you :)

  5. Katherine
    06/15/2016 at 2:45 pm

    This is recipe is the bomb!!! I’ve tried so many mug desserts and they’re always “eh,” but this is soooo good! I made it yesterday for me and my sister and I woke up today craving another lol. I normally don’t comment on blogs, but this recipe deserves an award! Thank you so much for sharing it.
    XX Katherine

  6. Cathy
    06/15/2016 at 8:04 pm

    This cake is amazing! It truly is moist and flavorful and super easy to make. Thanks for sharing!

  7. Stacey
    06/15/2016 at 11:01 pm

    I have been making this recipe for awhile now, and it is my go-to mug cake! Such an easy quick dessert! Every now and then I substitute 1 TBS of Kahlua for some of the milk and the coffee liqueur just adds another layer of flavor.

  8. Sarb
    06/17/2016 at 2:54 pm

    I was craving an excessively rich, bittersweet kind of chocolate when I found this recipe, so I made the cocoa measurement heaping and used dark chocolate in place of the hazelnut spread. It was super rich and decadent. Thank you so much for sharing this.

  9. Amber
    06/18/2016 at 5:08 pm

    I made this recipe just now but used self raising flour and added an extra tbsp of sugar (I am sugar mad). It took 2 1/2 monutes in my 700W microwave but it has come out lovely! I will be writing this recipe down and using it again. Oh and I used nesquik hot chocolate powder too

  10. Rebecca Wright
    06/19/2016 at 1:19 am

    Great recipe. Love it and super easy to make. You are a dorm room savior.

  11. Candace
    06/22/2016 at 6:34 pm

    This cake is so good! The nutella was a great addition! A scoop of vanilla ice cream and this cake was beyond perfection. I am definitely sharing this recipe.

  12. sp02
    06/23/2016 at 6:27 am

    is the batter supposed to be runny

    • Julie
      06/23/2016 at 7:15 am

      Not super runny like liquid. It’s supposed to be on the thicker side..kind of like brownie batter.

  13. Fazlin
    06/23/2016 at 12:49 pm

    Just made these for my kids and they loved it. It’s nice and moist and I substituted the hazelnut spread for chocolate chips . Thanks for a quick and easy recipe.

  14. Farhana Sultana Karim
    06/23/2016 at 1:11 pm

    I was looking for a easy… Moist…. Chocolaty mug cake…. And I got it. Found the recipe yesterday and already made three times.. Turned out yummy with ice cream top on it. Thanks a lot….

  15. Julie
    06/25/2016 at 9:16 pm

    This was perfect! I had given up on these recipes because they were all like rubber. This one is very moist and rich. Very dangerous! ;o)

  16. Ayesha
    06/26/2016 at 10:27 am

    Superb recipe. Turned out very nice and moist

  17. Sheila Lockhart
    06/26/2016 at 3:06 pm

    I am go to try this recipe in a day or two. This would be a great recipe for me; since I live alone and hate to make a big cake and it goes to waste.

    Thank you for your time.

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