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

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. Ingrid (Brazil)
    10/24/2016 at 10:31 pm

    Hello! Your recipe really saved me, I was going to make that spongy thing that people ‘sell’ as mug cake for my girlfriend’s birthday tomorrow even though it turned out awful when I tested. I used self-rising flour on your recipe and it turned out just fine. Instead of cocoa powder, I used sweeted mix of cocoa and put a bit of coffee, since she loves this combination. My test lacked a bit of taste, but I will try putting a bit more of sugar and maybe a chocolate syrup when I bake it tomorrow. Thanks a lot!!

  2. Naomi
    10/24/2016 at 11:21 pm

    I literally just made this cake and I’m eating on it as I type! Soooooooooo amazingly good. I made a few changes- I used coconutalmondmilk instead of regular milk and added pecans and whipped cream on top…omgeee delicious!

  3. Positively Delighted
    10/27/2016 at 1:11 am

    I tried this today, and, since I ran out of milk, I used evaporated milk, and I did half and half white and brown sugar. Put peanut butter in the center before “baking”, and in 70 seconds, it turned out fabulous. :D

  4. Malini
    10/28/2016 at 12:59 am

    This is an awesome cake. Thank you so much for sharing this recipe.My kids loved it. I kept it for 70 sec. It was the best instant chocolate cake I ever made.

  5. Suzanne Mulder
    10/28/2016 at 10:25 am

    This is my go to mug cake recipe for like 2 years already, but today when I made it, I had no milk and put orange juice in it instead of milk (I know that’s kind of a weird thing to replace milk but okay) and it turned out better than I expected!
    The structure didn’t change much and now it has a little bit of an orange flavour. Amazing! (:

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