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Brownie In A Mug

A single serving brownie in a mug – perfect for any time you’re craving a gooey chocolate brownie!

Brownie Mug Cake

Chocolate Brownie In A Mug

A fudgy, gooey, moist, chocolatey, super delicious treat… ready in under five minutes!

For any chocolate lover, this dangerously easy chocolate mug brownie might become your new favorite recipe.

It’s the perfect answer for those times when you’re craving chocolate but don’t want to be left with an entire pan of brownies when you only want one serving.

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Brownie In A Mug Recipe

The Best Brownie Mug Cake

Single Serving
Easy To Make
High Protein
Can Be Vegan
Sugar Free Option
Gluten Free Option
No Eggs Required
No Box Brownie Mix

Feel free to add chocolate chips, or top with Coconut Ice Cream or Keto Ice Cream.

The gooey brownie in a mug was adapted from my chocolate mug cake, which is one of the reader favorite recipes on my site. To turn it into a brownie, I played around with the ingredient ratios and also added some dutch cocoa to give it that classic brownie flavor.

(The recipe still works with regular cocoa if you can’t find dutch; it will just not have as much of a traditional brownie flavor.)

Above – watch the video how to make a brownie in a mug!

To make the recipe, simply combine all ingredients together in a coffee mug or heat-safe dish.

The brownie can be made in a microwave OR a conventional oven.

While I haven’t tried a low fat version, many readers have written in to say they’ve had good results replacing the oil for applesauce or banana, so you can try that at your own risk.

The video uses coconut oil, but you can substitute any oil or your favorite nut butter of choice, such as peanut butter or almond butter.

For a fun flavor twist, you can even make a nutella brownie by replacing the oil with a spoonful of chocolate hazelnut butter or my Healthy Nutella.

5 Minute Chocolate Brownie Mug Cake Recipe

Adapted from this Chocolate Vegan Mug Cake

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Brownie In A Mug Recipe

A single serving brownie in a mug recipe that's perfect for any time you’re craving chocolate.
4.95/5 (62)
Total Time 5 minutes
Yield 1 mug brownie

Ingredients

  • 1 tbsp unsweetened cocoa powder
  • 2 tsp dutch cocoa, or additional regular
  • 3 tbsp spelt, white, or oat flour (Here’s a Keto Mug Cake Recipe)
  • 2 tbsp sugar, or sub erythritol if desired
  • scant 1/4 tsp baking powder
  • 1/8 tsp salt – don’t forget
  • 1 tbsp oil or nut butter (some readers sub applesauce or banana)
  • 3 tbsp milk of choice
  • 1/2 tsp pure vanilla extract

Instructions

  • Notes: If you want to remove the cake before eating it, be sure to grease the mug before starting. If you can’t find dutch cocoa, subbing additional regular will still work; it will just have less of a brownie flavor. I haven’t tried subbing applesauce or banana for the fat and therefore can’t vouch for the taste of that substitution.
    If baking, preheat oven to 350 F. Combine all ingredients in a mug or 1-cup dish (or two 1/2-cup dishes). Either bake around 14 minutes, OR microwave until set. Microwave times will vary depending on wattage and if using one or two dishes – I cooked mine for 1 minute, followed by two 10-second increments. If you try the recipe, be sure to leave a comment or rate it below!
    View Nutrition Facts

Have you made this recipe?

Tag @chocolatecoveredkatie on Instagram

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4.95/5 (62)

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Published on March 4, 2019

Meet Katie

Chocolate Covered Katie is one of the top 25 food websites in America, and Katie has been 
featured on The 
Today Show, CNN, 
Fox, The 
Huffington Post, and 
ABC's 5 O’Clock News. Her favorite food is chocolate, and she believes in eating dessert every single day.

Learn more about Katie

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Reader Interactions

70 Comments

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  1. Linda Reid says

    Katie your recipes are amazing. Thank you so much for sharing them with me. I just made the mug brownie and it is so yummy. I’ve made a lot of your desserts and regular dishes and we have enjoyed them all!!

  2. Catherine says

    Hmmmmm… This is NOT a ready in five minutes dish. Measuring out the ingredients takes a lot of time. Will not be trying again. Was not worth the effort.
    Also, the tiny text in this comment box makes it difficult to read what I’m writing.

    • Hannah says

      It really shouldn’t take longer than a few minutes to measure out these ingredients. I would guess 2 or 3, although I have not timed it. But you could also measure the dry ingredients into bags to have on hand, that way you only have to get out those ingredients once. Hope that’s helpful.

      • Ariel says

        Just made it took me 5 minutes to get the ingredients together and 1 minute to cook so not bad lol. That’s a great idea Hannah thank you! I did however use 2 tbsp cocoa powder and 2 tbsp sugar for my bf. He thought the original tasted “sugar free?” That may help some. Thank you for this recipe!

        • Ariel says

          Just made it took me 5 minutes to get the ingredients together and 1 minute to cook so not bad lol. That’s a great idea Hannah thank you! I did however use 2 tbsp cocoa powder and 3 tbsp sugar for my bf. He thought the original tasted “sugar free?” That may help some. Thank you for this recipe!

    • Anya says

      I agree, this recipe looks like it would take closer to 15 to 20min by the time you measure everything out, bake it, and then clean up all spoons that get dirtied from measuring everything!

      • Jason Sanford says

        If you bake it in the oven, it will be longer. But the microwave version can be done in about 5 minutes, including cooking time.

        • Anya says

          Even if I used a microwave, this recipe from start to finish would take me 15-20min. I just wanted to agree with the original commenter and let her know that I felt the same way.

          • Jason Sanford says

            I would time it. There’s no way it should take that long to measure out a few ingredients! But the bag trick would definitely help to cut back on time regardless.

          • Anya says

            I don’t understand why you want to dispute my personal time estimate. All I wanted to do was interact and connect with another commenter.

          • Michelle Johnson says

            No way does this take 15 minutes on the microwave version. This barely took me five minutes from start to finish eating. I’d add chocolate chips for a deeper level of chocolate. Loved this recipe!

  3. Holly says

    I have made this recipe more times than I’d like to admit since you posted it on instagram. I love using oat flour and it does come together in 5 minutes or less especially with practice ? It’s my favorite mug cake!

    • Jason Sanford says

      Most grocery stores or target or walmart will have it. Just look for the words “processed with alkali” somewhere in the ingredients. Hershey’s Special Dark is one brand in major stores, or this is the one Katie often uses: https://amzn.to/2XHbBa7

  4. Linda Griffin says

    Just made this and it was delicious. I used almond butter and Hershey’s Special Dark chocolate. It’s great to be able to make just one! Keeps me from eating too many ?

  5. Osnat Ravid- Amir says

    Hi,
    I Love your recipes and your beautiful pictures!
    Just got your Mug Brownie recipe and it looks amazing.
    I think there is a mistake in the nutrition facts though, the amount of sugars that is written is 1.1 which doesn’t make sense given the 2 Tbs of sugar. Maybe its for the erythritol version?
    Thanks for all your wonderful recipes, keep going!
    Osnat 🙂

  6. jermaine gray says

    Hi, kate your content is lovely so far I’ve looked at a few of your recipes and the vegetarian brownie looks good, and i am all about my health so kudos to you again.I will be trying out the vegetarian brownie.

  7. Becky says

    I love it. I know I will be making it quite often. The best part is that was able to enjoy a delicious treat and I don’t have a whole pan tempting me.

  8. calgal says

    This is so, so delicious. I subbed the oil for applesauce and baked in the oven, which tasted much better than the microwave version (I tried both). It definitely needs a frosting of some sort, IMO. This is in my favorites folder and I’ve made it at least 5 times already!

  9. Eleanor says

    Made this by splitting the batter between two ramekins and baked them in the oven. I added mini chocolate chips, used coconut palm sugar, and peanut oil and they were perfect with vanilla bean ice cream on top!!! Will absolutely be making these again and again!!!

    • Karen Terhark says

      vanilla bean ice-cream is EXACTLY what I wanted to go on mine but had to settle for vanilla chocolate chip. Vanilla bean would have been the bomb!!!

  10. Susan says

    I tried this today for the first time. It was delicious and took me just under 10 minutes but only because my hubby reorganized the pantry and I had some scavenging to do to find all the ingredients. Next time will be less than 5 minutes for sure!

  11. Karen Terhark says

    I made the Brownie-in- the- Mug and granted I didn’t time it but good grief, does it really matter? I think I had mine put together between 5-10 minutes start to finish. ha ha, that is subtracting the time I spent keeping track of a hyperactive puppy. Now to rate the recipe. 5 stars!!! It was so delicious. It definitely satisfied my sweet tooth and dessert craving. I used dark chocolate cocoa powder, full amount, and white chocolate chips. I have to eat gluten-free so I used oat flour. I only needed 1 minute and 10 seconds to cook. I will try it with organic natural peanut butter next and coconut oil another time. Has anyone tried olive oil? This is nice to have a single serving of so you can’t over-indulge. I wish i had taken a picture after it was done and with a cute little scoop of ice-cream on top.
    Thank you Katie ~ I have enjoyed looking at your recipes and have tried a few. I admire your creativity.

    • Jason Sanford says

      Keeping track of a hyperactive puppy seems like a worthy use of adding a few extra minutes on to this recipe’s cooking time ?

  12. Hallie says

    The chocolate cake in a mug has been my go-to for a last minute dessert since it was published. Lately I’ve been really into brownies so this adaptation is great! I always underbake mine in the microwave. I make it as written except for half coconut oil and half applesauce and a few chocolate chips.

  13. Sue says

    This recipe is amazing. Takes less than 5 minutes to assemble and 1 minute to microwave. And then a decadent brownie treat on a day I really needed a chocolate pick-me- up. Thanks Katie!

  14. Cola says

    This was the best mug brownie I’ve EVER had. It was so moist! I’ve been so skeptical of mug recipes cause many have failed me no matter how hard I tried. Thank you so much!!!!!

  15. MamaTree says

    Fabulous. Didn’t have patience for oven so made microwave version with regular cocoa, AP flour, brown sugar, sunflower oil, oat milk. I gilded the lily by shoving a tablespoon of chocolate chips into the center after the first 60 seconds (before the last 20 seconds). Sprinkled the top very lightly with flaky salt while I was waiting for it to cool enough not to burn my tongue. Thank you for this! xo

  16. anonymous says

    I subbed in almond flour and it made a wonderful lava cake like base which I then topped with chocolate chips. Would highly recommend!!! Thank you Katie!!!

  17. Luana Johnson says

    FYI…I timed myself. It took me slightly over four minutes to add the ingredients and one minute, ten seconds to cook in microwave and I had my kitchen cleaned up in the time it was cooking! Yay! So total t Maybe it’s because I love to cook and I do it a lot. By the way I used regular old good quality Cocoa and canola oil. While admittedly it wasn’t as good as a “normal” pan of my brownies, it was super quick and I was having a craving that this satisfied completely. I topped it with a heaping spoonful of cookies and cream ice cream and it was amazing…much better than ANY of the store bought brownie-for-one mixes. This brownie recipe is delicious and I will definitely make again! Thank you for the recipe!

  18. Liz says

    This looks like my go-to chocolate fix. Thank you Katie.
    Am I imagining things or was there a mention of a contest by the maker’s of the chocolate chips you used in the recipe? If you wrote something in the comment box that they liked, then they would provide you with a year’s worth of chocolate. Did I read this somewhere else?
    Thanks,
    Liz

  19. Kristen says

    So thankful for your recipes Katie! My son and I love them. He has an egg allergy and your recipes have allowed him to stills enjoy delicious treats 🙂

  20. Abieda Roberts says

    Everything i have on your blog has turned out so good!!! But this has been our favourite! Have made it so many times for friends and family. Everyone loves it. Thank you so much.

  21. Mary says

    I just made this – it was quick and delicious. Measuring was quick and easy – did 1 minute plus 10 seconds – great recipe!

  22. Karen says

    I made this used part gf flour, added a few drops of olive oil and some mashed banana turned out really well. But if you didn’t want chocolate/banana flavor I would do the applesauce next time. I topped it with carmel and chocolate sauce. Delicious!

  23. Sindy says

    Had to laugh at the person complaining about the time – my first thought was, damn girl you gotta big kitchen! Took about 5 min start to finish and only dirtied 1 TBL and the mug. Used reg flour, reg cocoa, canola, almond milk, added in a few nuts and a few vegan choc chips. Microwaved for 1 min 30 sec – Surprisingly the texture was really good, more cake like than brownie, but very good. It’s actually fairly rich, so I topped it with almond milk ice cream and only ate half, saved half for later. The TBL of oil is a lot of calories, so going to try either banana or even flax seed/water next time. All in all, a great recipe to satisfy the craving. Thanks!

  24. Margaret says

    Just made the chocolate brownie mug cake exactly as recommended.. 1 min in microwave the 2/10 second hits. Came out perfect..I did sprinkle chocolate morsels on top before cooking.

  25. Jacqui says

    Could you use coconut flour? If so, would it still be 3 tbsp? If you were substituting the applesauce for the oil, would it be the same measurements? Thanks!

  26. Megan says

    I wanted dessert. My husband wanted to watch The Walking Dead. So I had to get out of the downstairs pretty quick-like (I can’t stand the noises the zombies make). Moments, mere moments, after I found this recipe, I was happily upstairs enjoying it. Moments, mere moments, later it was gone! Delicious texture. Great flavor. All the good things.

  27. Janet Arnold says

    I shared this recipe (and a mug-full of cake) with my retired-home-ec-teacher mom. She said it reminded her of s “steamed pudding”. We have made several versions with lots of variations and they all turn out great.

  28. Yvette says

    I was craving it late last night. Woke up this morning and decided to make it:) went well hella way better with ice cream:) can’t wait to make it for my husband!!!
    Super easy!!! Instead of oil I just put butter.
    Thank you!!!

  29. Sarah says

    SOOO good! I just had a brownie craving I couldn’t satisfy and this was perfect! I tried it with applesauce – even used part of a Go-Squeeze packet from kids! – and microwaved 1 minute. Then did another 15 seconds and it was set. I put a few mini-chips on top and it’s fantastic! Definitely will make this one again!

  30. Braydon says

    Poured a bit much milk but it just added its own choclate sauce now im gonna eat it ty for the recipe even though im a kid im very intrested in cooking.

  31. Dube Veena says

    I doubled the recipe, wanted to make little more than the small batch.
    I baked in the conventional oven at 350.
    Do I double the baking time from 14 minutes?
    Thanks
    Veena

  32. VegiMom says

    This was great! Gluten free and eggless and ready in about 5 minutes! Perfect fix when you are craving a chocolatey snack!

  33. shazza says

    Just made this, and it was moist and delicious. Added less sugar, but served with a dollop of vanilla ice cream. Best Mug cake ever. Yum

  34. Kelly says

    I made this twice. Once as listed, used coconut oil and added some chocolate chips. Cooked for 1 minute. It was good but felt more cake like than brownie. The second time, I added an additional tbs of sugar, used butter, and added both choc chips and peanut butter chips, cooked one minute…this turned out more brownie like and gooier. Delicious either way!

  35. Lachef says

    Very good. Doubled the recipe and buttered two ramekins cooked it for about 1:30 each in microwave. Delicious (oh and used apple sauce instead of oil). Great texture intense brownie taste. 😊

  36. Stef says

    Made it with applesauce and it turned out perfectly, topped it with some peanut butter while it was still hot so it melted! Also added in some chocolate chips for a little extra chocolate!

  37. Holly says

    I used all purpose flour, measured everything carefully. It was moist but cooked at a minute and a half. Like another reader, I think it was a bit cake-like. I might try taking the baking powder down a little next time. So glad you shared this! I’m sending a link to my friend.

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