Chocolate Brownie Mug Cake

Yield: 1 mug cake

Chocolate Brownie Mug Cake

Chocolate Brownie Mug Cake

Desperately craving some brownies? Make this deliciously fudgy Chocolate Brownie Mug Cake instead. Have you brownie and eat it in less than 5 minutes!

Prep Time 3 minutes
Cook Time 1 minute


  • 2 tbsp (30g) butter, softened
  • 2 tbsp (26g) granulated sugar
  • 1 tbsp (15g) light brown sugar
  • 1 tbsp cocoa powder, unsweetened
  • 1 medium egg yolk
  • Β½ tsp vanilla extract
  • 4 tbsp self-raising flour, see notes
  • pinch of salt
  • 1 tbsp dark chocolate chips
  • 1 tbsp white chocolate chips


  1. Place the butter in a 250ml (1 cup) sized cup or mug, and microwave for 10-20 seconds until melted.
  2. Add both sugars, cocoa powder and beat using a fork until combined.
  3. Add the egg yolk, vanilla, flour and salt and beat again until thoroughly combined.
  4. Stir through half of the white and dark chocolate chips.
  5. Cook in the microwave for 30 seconds, then scatter the remaining chocolate chips over the top and return back to the microwave for a further 30 seconds.
  6. Remove from the microwave and allow to cool a little before serving.



  • If your microwave has a power of less than 800W, increase the first cooking time from 30 seconds to 50 seconds. The second cooking period remains at 30 seconds.
  • Don't have self-raising flour? Substitute with plain (all-purpose) flour and add an additional ¼ tsp of baking powder.
  • This recipe can easily be doubled for 2 mug cakes.

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26 Comments on “Chocolate Brownie Mug Cake”

  1. Rebecca β€” May 5, 2015 @3:54 pm Reply

    Looking out of the window I think that this is exactly what I need right now ;D
    I never made a mug cake but sure I have to try :D
    all the best, greetings

  2. Jess @Sweetest Menu β€” May 5, 2015 @9:28 pm Reply

    Seriously, this look incredible! And so dangerous. I could EASILY gobble one of these bad boys every night! Delicious Lisa! :)

  3. Kayle (The Cooking Actress) β€” May 6, 2015 @1:07 am Reply

    May IS great---and so is this brownie mug cake!!! It looks chocolatey and like the perfect quick sweet fix !

  4. The Partiologist β€” May 7, 2015 @12:24 pm Reply

    It has been a long time since I made a brownie in a mug, now it looks like I need to grab a mug and start baking. Such a great idea, that way I don't have to eat the entire pan of brownies! :)

  5. Mary Frances β€” May 8, 2015 @3:27 am Reply This looks even better than a brownie (Did those words just escape my mouth?? :) ) SO moist and fudgy! Wow, no words. Except I need this in my life stat. And whoop whoop for birthdays!

  6. Connie | URBAN BAKES β€” May 8, 2015 @5:22 pm Reply

    Your mug cake looks absolutely scrumptious! Brownie cakes are my weakness. Thanks for inviting me along to participate! :)

  7. Liz β€” May 11, 2015 @1:21 am Reply

    Can you believe I've never made a mug cake???? But there will certainly come a day when there are no freshly baked goodies on the counter and I'll pull this one out of my hat! Yours are the best I've seen!!!

  8. Dorothy @ Crazy for Crust β€” May 11, 2015 @2:56 pm Reply

    This looks so fabulous Lisa!! Good thing for me so I don't eat a whole pan. :)

  9. Bess β€” June 6, 2015 @7:16 pm Reply

    I just made this! It was delicious, though I may take out a tablespoon of flour for a more moist consistency. Thanks so much, I've never made a mug cake before.

    1. Lisa | Sweet 2 Eat Baking β€” June 6, 2015 @11:17 pm Reply

      Glad you enjoyed it, Bess. It is delicious. I could eat one everyday! :) Don't you just love how gooey the chocolate chips are when digging in? Yummy.

      Adding less flour should work, or you could add a tablespoon of milk. You could also melt an extra 2-3 tablespoons of chocolate chips in when melting the butter too! Feel free to experiment.

      Thanks for stopping by. Have a sweet day.

  10. Sonya β€” October 1, 2022 @4:59 am Reply

    This was delicious even though I made a few changes. I decreased white sugar to 1/2 tbsp and added 1 tbsp splenda. I added a whole large egg vs just an egg yolk, I forgot the vanilla and salt, I only used 3 tbsp flour, or maybe only two. I used all milk chocolate chips. It was delicious! I served it with some homemade vanilla yogurt on top and it was perfect. I would maybe cut the sugar even more. maybe no white sugar at all and only 1/2 tbsp of splenda. I prefer baked goods to not be overly sweet.


  1. Sweet 2 Eat Baking | A UK baking food blog with the focus on delicious and easy dessert recipes – featuring cakes, cupcakes, cookies, pies, puddings and much more! Sugar rush guaranteed!
  2. Sweet 2 Eat Baking | A UK baking food blog with the focus on delicious and easy dessert recipes – featuring cakes, cupcakes, cookies, pies, puddings and much more! Sugar rush guaranteed!
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