People say this fudgy chocolate mug cake recipe is the best mug cake they’ve ever tried. And you can make it in the microwave or oven!

The best chocolate cake in a mug
This is the chocolate mug cake recipe for chocolate lovers.
Rich, decadent, and delicious, the recipe has over two thousand positive reviews from readers who’ve made the chocolate cake and absolutely love it.
So if you’ve been disappointed with other chocolate mug cake recipes in the past, definitely be sure to give this one a try, because it will not disappoint!
Readers also love this Brownie in a Mug
Microwave chocolate mug cake recipe
I could tell you that I labored in front of a hot oven all day baking this cake.
But the reality is that the chocolate mug cake took only one minute.
Yes, really.
And it’s made with pantry staple ingredients you can always keep on hand, with no eggs required.
Any time you are craving chocolate, now all you have to do is head to the kitchen and whip up this easy chocolate dessert in the microwave.
You can even portion out the dry ingredients ahead of time and store the chocolate cake mix in small Ziploc bags so the recipe will be even quicker to make when you’re ready to eat.
It’s like chocolate cake meal prep!
For a larger version, try this Vegan Chocolate Cake
Chocolate mug cake flavors
Chocolate Peanut Butter: Omit the oil in the recipe below, and stir in one or two tablespoons of peanut butter (or almond butter) in its place.
Nutella Mug Cake: Instead of oil, add a tablespoon of your favorite chocolate hazelnut spread. I like this Homemade Nutella Recipe. Top with more Nutella!
Chocolate Peppermint: Stir a fourth teaspoon of pure peppermint extract into the liquid ingredients before stirring everything together to form a batter.
Dark Chocolate Coconut: Use coconut oil, and top the finished mug cake with dark chocolate chips, shredded coconut, and a scoop of Coconut Ice Cream.
Mocha Mug Cake: Stir half a teaspoon of instant coffee granules, regular or decaf, in with the cake’s dry ingredients.
Chocolate Orange: Add one teaspoon of orange zest to the mug before stirring.
What is your dream single serving mug cake flavor? If there are any other ideas you’d like to see that I do not have listed above, definitely let me know!
Frosting options
Feel free to decorate your single serving chocolate cake with shredded coconut, chopped walnuts or pecans, mini chocolate chips, hot fudge sauce or caramel sauce.
I used this homemade Chocolate Cream Cheese Frosting.
Or you can frost the cake however you wish, such as with store bought or homemade vanilla or chocolate frosting, powdered sugar or melted chocolate, sliced bananas, strawberries, cherries, blueberries, or raspberry jam.
It’s also wonderful topped with Coconut Whipped Cream or Almond Milk Ice Cream.
Chocolate mug cake recipe video
Above, watch the step-by-step video
How to make a chocolate mug cake
Start by combining all of the dry ingredients in a cereal bowl or small dish. Stir very well, to ensure the salt and baking powder are evenly distributed.
Add liquid, stir to form a chocolate cake batter, and pour the batter into a microwave or oven safe dish, ramekin, or coffee mug.
Especially if you are not planning to eat the cake straight out of the mug, be sure to grease the dish well before adding the batter.
Microwave for thirty to forty seconds. Mine is always fluffy and cooked through after this time, but you may need to cook longer depending on your microwave’s wattage.
Or bake the mug cake in the oven for fourteen minutes or until a toothpick inserted into the center of the cake comes out mostly clean.
Frost the top of the dessert and enjoy. To store leftovers… Wait, what leftovers?
Mug cake recipe ingredients
Here’s what you need to make the single serving recipe: cocoa, flour, sweetener, salt, baking powder, milk of choice, pure vanilla extract, and oil or banana.
Cocoa powder – Use regular unsweetened cocoa powder for the first tablespoon of cocoa. Dutch cocoa powder, hot chocolate mix, or additional regular unsweetened cocoa can be used for the two teaspoons.
Flour – The recipe works well with white flour, oat flour, all purpose gluten free flour, or spelt flour (my personal preference). I have not tried it with any other options such as whole wheat flour or pastry flour. A keto mug cake version with almond flour is also included in the recipe box below.
Sweetener – This can be granulated sugar or unrefined coconut sugar or a liquid option like pure maple syrup or honey. For a sugar free mug cake, use xylitol or granulated erythritol. Stevia technically works, but the flavor and texture are better if you go with one of the other options listed here.
Fat source – I think the cake tastes best made with coconut oil. My second favorite choice is peanut butter or almond butter. Vegetable oil is also fine to use. If you want a low fat or fat free mug cake, many readers have written in to say that it works to substitute applesauce, Greek yogurt, sweet potato, pumpkin, or mashed banana. I much prefer the taste with some fat added, but that is a personal taste preference.
Vegan chocolate mug cake
The mug cake is already naturally eggless, which means it is super easy to create a dairy free and vegan version.
Just use a plant based milk, such as coconut milk, soy milk, or almond milk. If topping with chocolate chips, ice cream, or frosting, choose vegan options for those as well.
For a gluten free chocolate mug cake, use either oat flour or gluten free all purpose flour. If you experiment with any other gluten free flours, let me know how it goes.
You may also like these Vegan Chocolate Chip Cookies
Chocolate Mug Cake
Ingredients
- 1 tbsp cocoa powder
- 2 tsp Dutch cocoa powder or additional regular
- 3 tbsp flour spelt, white, oat, or all purpose gluten free (or try this Keto Mug Cake Recipe)
- 1/8 tsp salt
- 2 tbsp sweetener of choice
- 1/4 tsp baking powder
- 2 1/2 tsp oil or nut butter (While I much prefer the version with fat, many commenters say they love substituting applesauce or mashed banana here)
- 3 tbsp milk of choice
- 1/2 tsp pure vanilla extract
Instructions
- How to make a chocolate mug cake recipe: Combine dry ingredients and mix very, very well. Add liquid, stir, then transfer to a little dish, ramekin, or even a coffee mug. Either microwave 30-60 seconds (time will depend on your microwave's wattage) OR cook in a preheated 350 F oven for about 14 minutes. If you don’t want to eat it straight out of the dish, be sure to spray your dish first and then wait for the mug cake to cool before trying to remove it. Frosting ideas are listed above in the post!View Nutrition Facts
Notes
Have you made this recipe?
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Dawn says
Made this chocolate mug cake for my husband and I and OMG! It was delicious. It only took 1 minute in the microwave and boom it was done. Topped it with some whip cream and yum yum!! My husband even enjoyed it, and he is very picky! Thank you much for this recipe. It’s definitely a keeper!!🙂
Felix says
Thank you. Really delicious cake.
Sara says
I just made it, it is exactly what I needed! Since it didn’t have any eggs, I kept 1tbs of the batter and topped the cake with it when it came out of the microwave as the ganache. So yummy, will try it with the other subs like pb and Nutella soon 🙂
Nikki says
I’ve been looking for a mug cake for a while, and but never gave it a shot. Until now! WOW!! So delicious! I used 1T Nutella instead of oil (was craving extra chocolate 😂) and topped it with a little more Nutella and a drizzle of butterscotch peanut butter. (Microwaved it for 40 seconds to perfection !). It didn’t affect the macros much. LOVE IT!!! I’ll look no further for chocolatey mug cake delight! It wasn’t dry and chalky. Just amazing! Thank you so much!!
OstentatiousArtichoke says
Delicious! Absolutely delicious! The cake is moist and fudgy, with a very rich chocolate flavor. Totally recommend.
Lauren Helfrich says
I wish I had some of these right now. I’ve been feeling unwell for a week and nothing has appealed to me. But these are really tempting. They look delicious!
Blue says
One of my favorite recipes for a chocolate cake🤤❤️. Now I was wondering, how much time and degrees would it needed to be if I do a large batch on a conventional oven? 🤔
Lily says
THANK YOU! This recipe is small but incredible. Been having the worst period cravings and was desperate to avoid eating half a bag of chocolate chips. I added a bit of extra cocoa powder, put in 1 tbsp of maple syrup, and didn’t bother with oil or an oil sub. The texture was incredibly fudgy, and tasted delicious. Successfully satisfied my cravings with no chocolate chips needed! For real, cocoa powder does the job nicely, who knew. Enjoyed this treat plain, but an almond butter “frosting” added some healthy fats/fiber and made it quite filling. Feeling good, and it’s top of my list for future cravings! Much love <3
Lily says
THANK YOU! Was having the worst period cravings and was desperate not to eat half a bag of chocolate chips, this recipe saved me. I added extra cocoa powder, used 1 tbsp maple syrup, and didn’t bother with oil or an oil sub. It turned out this incredible fudge texture, and tasted delicious. The cocoa successfully satisfied my cravings, and the addition of an almond butter “frosting” added healthy fats/fiber which made it quite filling. No chocolate chips needed! Overall am deeply thankful, and this recipe is top of my list for future cravings. Much love <3
Christine Klepper says
Wow! This.Is.Amazing! I’ve had a headache for a couple days and just wanted a treat. I had all the ingredients but was a little nervous there was no egg. This cake was perfect! Thank you!!
Nabz says
This has become my go to mug cake recipe foe whenever I am craving one. I like to turn this into a sort of “poke cake” by adding cream and cocoa and then poking holes and drizzling that on top. If I’m feeling extra, I make a chocolate cream cheese frosting as well. Overall, great recipe 😀
Alana Deegan says
BEST IVE EVER TASTED
Rennie Sharp says
Excellent. Rich in chocolate and I used Rum flavoring and half and half for liquid with crushed butterscotch and mini-chocolate chips.
Carol Garron says
OMGOSH…exactly the deliciousness I was searching for!! Thank you for this recipe 🥰
Jess says
I used all brown sugar as the sweetener, and added some golden syrup to replace 1/2 tbsp of fat and the texture is brilliant. It’s so tasty!
One thing I will say is it took 2 1/2 mins to cook I think it depends on ur microwave wattage
Anonymous says
my friends and i are in med school. we don’t eat a lot of fiber but we eat these nearly everyday. i use less chocolate chips and it still tastes amazing. these brownies may nearly save us all from digestive strife
Denise says
This was so yummy and easy! Love all the variation options too. Thanks!