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Home » Recipe Type » Desserts » Brownies & Bars
4.8 from 123 reviews

100 CALORIE Single Serving Brownie

2 minutes
By: Pamela Reed
Posted:2/15/21
Updated:4/22/25
Jump to Recipe

100 CALORIE brownie is my favorite single serving brownie recipe! This easy recipe makes a fudgy chocolate brownie for one in the microwave in 1 minute!  If you’re anything like me, you will eat a whole tray of brownies if they’re out, so these low calorie brownies are perfect for satisfying a sweet tooth

single serving chocolate brownie in white bowl with rainbow sprinkles on top

100 Calorie Brownie

My name is Pamela and I have no self control when it comes to sweets. Yeah, sure I’ll eat one cookie. But then I’m going to come back and eat 4 more. With that in mind I came up with some single serving recipes that satisfy my sweet tooth like my single serving chocolate chip cookie, blueberry sponge mug cake, and this fudgy brownie!

You’re going to love these brownies because not only are they low calorie, but they only take 1 minute in the microwave. That’s right, you don’t have to wait 20 minutes for them to bake in the oven! I hope you try it soon and it becomes your new favorite treat!

fork going into fudgy single serving brownie

How to Make a Single Serving Brownie

Mix your dry ingredients (flour, sugar, cocoa powder, baking soda and salt) in a small bowl or a mug.

flour, sugar, cocoa powder, baking soda and salt in white bowl

Add 2 tablespoons of applesauce, no oil is needed for this recipe. I recommend my homemade applesauce recipe if you want to try to make apple sauce at home sometime.  Yum!

2 tablespoons applesauce going into white bowl.

Then mix all the ingredients up.

wet brownie mix in single serving bowl.

Cook the brownie in the microwave for 1 minute. Remove from the microwave and marvel at your beautiful brownie for one! Don’t you love how simple it was to make?

baked single serving brownie in small white bowl.

Serve as is or add some sprinkles or powdered sugar on top. I always add rainbow sprinkles because like my daughter says “Sprinkles make everything better!”.

Did you know it’s super easy to make homemade powdered sugar? For 1 cup of powdered confectioners sugar blend together 1 cup regular sugar + 1 tablespoon cornstarch until it’s powdery.  Store in a mason jar in your cabinet.

rainbow sprinkles on top of baked healthy chocolate brownie.

Can you freeze brownies?

You sure can! Wrap each brownie tightly in plastic wrap or aluminum foil to prevent freezer burn. Place the wrapped brownies into a freezer-safe bag or container. When you’re ready to enjoy one, simply microwave it for about 15 seconds to heat it up. These frozen brownies can stay fresh for up to 3 months!

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100 CALORIE brownie is a healthy single serving brownie recipe! This easy recipe makes a fudgy chocolate brownie for one in the microwave in 1 minute!  These low calorie brownies are perfect for satisfying a sweet tooth!
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4.75 from 123 reviews

100 Calorie Single Serving Brownie

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100 CALORIE brownie is my favorite single serving brownie recipe! This easy recipe makes a fudgy chocolate brownie for one in the microwave in 1 minute!  If you're anything like me, you will eat a whole tray of brownies if they're out, so these low calorie brownies are perfect for satisfying a sweet tooth
By: Pamela Reed
Prep Time: 1 minute minute
Cook Time: 1 minute minute
Total Time 2 minutes minutes
serves 1

Ingredients

  • 1 tablespoon flour
  • 1 tablespoon sugar
  • 1 tablespoon cocoa powder
  • pinch baking soda
  • pinch salt
  • 2 tablespoons applesauce

Instructions

  • Add flour, sugar, cocoa powder, baking soda and salt in a small bowl or mug and mix.
  • Add applesauce and mix all the ingredients together to make a creamy brownie mixture.
  • Put the brownie in the microwave for 1 minute.
  • Remove from oven and serve as is, or add powdered sugar or sprinkles on top. (optional)
  • Eat it up and enjoy!

Video:

Notes

If you want it a little more creamy, add a teaspoon of Nutella when you add the applesauce. Yes, the calories will go up a bit, but this will knock your  brownie loving socks off! 

Nutrition Information:

Calories: 100kcal (5%)
Course: Dessert
Keyword: 100 calorie brownie, single serving brownie
Did you make this?I love seeing what you’ve made! Tag me on Instagram at @BrooklynFarmGirl and don’t forget to leave a comment & rating below.

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4.75 from 123 votes (94 ratings without comment)

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  1. Shelby says

    September 10, 2021 at 6:08 pm

    This is great! I topped mine off with some Lily’s chocolate chips and it really took it that extra mile!

    Reply
  2. D says

    September 7, 2021 at 9:07 pm

    I added a pinch of cayenne and a pinch of cinnamon. I bet cloves would be a good add-in too. Very good, semi-guilt-free dessert, no matter how you make it.

    Reply
  3. Brownie lover says

    June 26, 2021 at 8:04 pm

    Omg this was actually amazing!! I didn’t expect it to work!

    Reply
  4. erin Green says

    April 22, 2021 at 1:04 pm

    I can’t get it to come out as 100 kcal at all, it’s 275 kcal with level tbsps !

    Reply
    • Pamela says

      April 22, 2021 at 1:39 pm

      How? 1 tablespoon flour 28 calories, 1 tablespoon sugar 45 calories, 1 tablespoon cocoa powder 12 calories, 2 tablespoons applesauce 13 calories, salt/baking powder 0 calories = 98 calories.

      Reply
  5. Claudia Torres says

    March 11, 2021 at 9:18 pm

    So simple and delicious!!

    Reply
    • Pamela says

      March 12, 2021 at 8:28 pm

      Thank you for commenting, happy you liked it!

      Reply
  6. Jo Ann says

    January 23, 2021 at 5:48 pm

    This mug brownie was great!!! 👍🏻

    Reply
  7. Crystal says

    January 14, 2021 at 11:04 pm

    This hit the spot!! Tasted so good that it will be my go to chocolate fix for sure.

    Reply
  8. Georgiana Bainbridge ♡ says

    January 10, 2021 at 4:58 pm

    Can this be made gluten free?

    Reply
    • Sophie says

      March 27, 2022 at 10:52 am

      Using gluten free 1:1 flour (bobs red mill is really good) it turns out awesome!

      Reply
  9. Ivy says

    January 9, 2021 at 7:43 pm

    Just stumbled across this recipe. Is the flour all-purpose or self-rising?

    Reply
    • Ruby says

      September 26, 2022 at 8:42 pm

      I used all-purpose and it was good!

      Reply
  10. zoe says

    December 11, 2020 at 11:34 am

    i’m the laziest person on earth, so i’ve been looking for a mug recipe just like this! i cannot wait to make it! thank you tons!!

    Reply
  11. Vidushi says

    December 5, 2020 at 10:52 pm

    I accidentally stumbled upon this recipe and wow my mind is blown. I didnt have applesauce nor yogurt so I used like 1/8 tsp of nutella and less than 1/2 tsp sugar and substituted with millet flour. Added almond milk for mixing the ingredients as it was all dry but WOW it cooked to be so soft and spongy! Though it wasnt sweet so took like miniscule ice cream and viola all balaned! Thankyou! <3

    Reply
  12. Hannah says

    October 29, 2020 at 12:52 am

    I’m always skeptical about these low-cal mug dessert recipes, but this tasted absolutely delicious. I added some Nutella (1/2 tsp instead of 1) and sprinkled powdered sugar on top as suggested – it definitely hit the spot!

    Reply
    • Pamela says

      October 29, 2020 at 3:05 pm

      So happy to hear you liked this mug brownie! Thanks for commenting Hannah!

      Reply
  13. Shirley says

    October 3, 2020 at 9:25 pm

    This is so perfect. I used 1 packet stevia instead of sugar and added 1-1/2 teaspoons crunchy peanut butter. Perfect. Have made this several times. Loved it each time. Thank you.

    Reply
  14. Monica P says

    July 23, 2020 at 4:24 pm

    I made this the instant I saw it, and wow!! This is amazing for a 100 calorie snack. I have a sweet tooth and it definitely satisfied my craving. Thank you!

    Reply
    • Pamela says

      July 24, 2020 at 9:23 am

      Hey Monica, I’m so happy to hear this helped your craving! 🙂 Thank you for commenting!

      Reply
  15. Amy Morales says

    July 1, 2020 at 2:52 pm

    Just started my weight loss journey and I have such a killer sweet tooth. This is perfect for when I want something sweet! I added about a tsp of chocolate chips, so it’s a little over 100 cals, but it’s worth it for me to fulfill that craving without going overboard! Thank you!

    Reply
    • Pamela says

      July 1, 2020 at 7:27 pm

      Hey Amy, I’m so happy you liked this brownie and it helped your sweet tooth! Best of luck to you!

      Reply
  16. Emilie says

    June 14, 2020 at 4:22 pm

    I just made this with yogurt instead of apple sauce and it was really delicious! I also used stevia because I like the taste. The texture was very thick and fudgy, as a brownie should be (some low-cal mug brownies are really cakey). Thank you so much!

    Reply
  17. Michelle says

    June 10, 2020 at 7:54 pm

    Thank you so much for this! I’m currently pregnant and am trying to cut back on my calories as I was eating too much chocolate and this is enough to satisfy my craving. I used gluten free flour and coconut sugar and it came out so yummy!

    Reply
    • Pamela says

      June 14, 2020 at 1:19 pm

      Hey Michelle, I hear you on the cravings (8 months pregnant here!). I’m happy to hear you liked this, thanks for commenting and best of luck! 🙂

      Reply
  18. Kafs says

    October 26, 2019 at 6:24 pm

    This recipe is amazing! Some low-calorie mug cakes call for artificial sweetener, and to me, that is all you can taste. This recipe uses normal ingredients and tastes so good! I can have one anytime I want and feel like I’m cheating. Thank you!

    Reply
    • Pamela says

      October 28, 2019 at 3:27 pm

      Hey Kafs, I’m glad you found this recipe and like it! Keep on enjoying, it’s almost guilt free. 😉 Thanks for commenting!

      Reply
  19. Roland says

    September 24, 2019 at 5:40 am

    This was DELICIOUS! I did only 1/2 tbsp sugar, and added a tsp Nutella as suggested.
    Only needed 45 seconds in the microwave.

    Stunning, bookmarked, will make this again! Thanks for sharing!

    Reply
    • Pamela says

      September 24, 2019 at 11:48 am

      Hey Roland, I’m SO happy to hear you liked this brownie! Thanks for commenting! 🙂

      Reply
  20. Nadia says

    October 1, 2018 at 9:24 am

    Can I replace applesauce with yogurt. We don’t get applesauce where I’m from 😍love the idea of a single serving and 100 cal. Cal counting here

    Reply
    • Pamela says

      October 1, 2018 at 11:18 am

      Yes, you absolutely can use yogurt instead! It will create a creamy brownie! Enjoy!

      Reply
    • Roland says

      September 24, 2019 at 5:41 am

      Here neither, we make our own applesauce 🙂

      Reply
  21. Diane O'Rourke says

    July 24, 2018 at 7:02 pm

    Can you tell me how many carbs are in the brownie?
    Thank you.

    Reply
  22. Beth says

    June 29, 2018 at 9:31 am

    This is a really yummy desert and so filling we put a little cream on it. I wonder if you could do a small tin in the oven. Anyway thanks so much

    Reply
  23. Daniel says

    April 11, 2018 at 5:53 pm

    if you want to bake this in the oven, what temperature should you use and how long should you bake it for?

    Reply
    • Pamela says

      April 12, 2018 at 4:30 pm

      Hey Daniel, I’ve never baked it in the oven but if you scroll up there are so comments that people have successfully!

      Reply
  24. Daniel says

    April 10, 2018 at 9:23 pm

    do you use sweetened or unsweetened applesauce?

    Reply
    • Pamela says

      April 11, 2018 at 9:19 am

      Hey Daniel, in general I prefer unsweetened applesauce – plus it’s less calories.

      Reply
  25. Dee says

    February 12, 2018 at 10:44 pm

    Have you ever cooked these in the oven? If so, what temperature and how long?

    Reply
  26. Maureen Jasovsky says

    January 31, 2018 at 5:21 pm

    This looks really good. What size is the cup that you put the brownie mixture in?

    Reply
    • Pamela says

      January 31, 2018 at 7:29 pm

      Hey Maureen, mine are about 3.75-4 inches. Enjoy the brownies!

      Reply
  27. Sia says

    November 14, 2017 at 1:42 pm

    What can I replace apple sauce with?

    Reply
    • Pamela says

      November 14, 2017 at 10:25 pm

      Hey Sia, you could use banana puree or oil but the calories will slightly change. Enjoy!

      Reply
  28. Orange says

    August 9, 2017 at 10:01 am

    Can you use caramel syrup instead of apple sauce?

    Reply
    • Pamela says

      August 9, 2017 at 11:00 am

      I wouldn’t recommend using caramel syrup instead of applesauce. It will raise the calories, and the liquid won’t bake the same.

      Reply
  29. Tory says

    July 18, 2017 at 9:17 pm

    I have to say, I was skeptical about this since I’ve tried so many single serving desserts, but this one “takes the cake” ? I did add a dash of maple syrup since my applesauce was unsweetened. So good!

    Reply
    • Pamela says

      July 18, 2017 at 10:03 pm

      Hey Tory – that makes me so happy to hear! Glad you enjoyed this brownie – thanks for letting me know!

      Reply
  30. Alyssa says

    November 28, 2015 at 1:59 pm

    I find that adding a splash of vanilla takes this recipe to the next level!

    Reply
    • Pamela says

      November 28, 2015 at 6:22 pm

      Yum, I will try that Alyssa!

      Reply
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Hi! I'm Pamela, an artist Mom who shares family recipes. My farm is a 1,000 sq ft apartment in NYC. Let's make dinner together.

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