Protein Banana Bread Mug Cake

1 Mug Cake302 cals

Hey! I’m starving so we’re gonna dive right into this Quick Banana Bread Mug Cake that’s PACKED with protein!

Start this one off with a mug of your choice! If it can fit at least cup a coffee coffee, you should be good to go.

You could also use a bowl or whatever else if you don’t want a mug cake, just make sure it’s big enough for the recipe.

Add into it 1 large egg, 1/2 teaspoon of vanilla extract, 2 tablespoons of coconut flour, 1/2 scoop of your choice protein powder (I like vanilla or chocolate), 1-2 teaspoons of a brown sugar substitute, 1/2 teaspoon of baking powder, 1 ounce of milk, and 1/2 banana.

Mix everything together while mashing in your banana. Using a fork here makes this much easier.

Microwave your banana bread mug cake for :30 seconds. Mix it up again and microwave it one more time for an additional 1-2 minutes. Total microwave total will depend on how powerful your microwave is.

Flip It Over

Remove your mug cake from the microwave and flip it over! If you did everything right, it should pop right out.

Top it with some sugar free chocolate syrup, whipped cream, or anything else you want.

You could also live dangerously and just eat your banana bread mug cake right inside the mug or bowl. Ok, maybe not dangerously but certainly more efficient!!!

Now the number one complaint I get with these mug cakes is that the middle doesn’t cook completely. If that’s the case then you’re either not stirring it long enough after :30 seconds or your microwave is underpowered.

If that’s the case, wait a little bit longer to stir it. Or buy a better microwave.

Try out our Low Carb Microwave Cheesecake next, it’s DELICIOUS and only takes 2 minutes!

Banana Bread Mug Cake Recipe

Protein Banana Bread Mug Cake

Like banana bread? Strapped for time? You're going to love this healthy and quick Banana Bread Mug Cake recipe that's packed with protein!
4.84 from 6 votes
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Prep Time: 1 minute
Cook Time: 2 minutes
Total Time: 3 minutes
Course: Dessert
Cuisine: American
Keyword: banana mug cake, healthy mug cake, microwave cake
Servings: 1 Mug Cake
Calories: 302kcal
Cost: $1

What We Used

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  • 1 Large Whole Egg
  • ½ Teaspoon Vanilla Extract
  • 2 Tablespoons Coconut Flour
  • ½ Scoop Protein Powder - Vanilla or Chocolate
  • 1-2 Teaspoons Brown Sugar Substitute
  • ½ Teaspoon Baking Powder
  • 1 Ounce Milk Substitute - or Milk
  • ½ Banana


  • Add all of your ingredients into a mug and mix them together until smooth
  • Microwave for :30 seconds
  • Mix everything up a bit again (this will make it cook evenly)
  • Microwave for an additional 1-2 minutes



Use a fork to “mash” your RIPE banana in while mixing!
Calories in the whole recipe:
  • Calories: 302
  • Fat: 10g
  • Saturated Fat: 4g
  • Sodium: 119mg
  • Carbs: 29g (Net Carbs: 22g)
  • Fiber: 7g
  • Sugar: 9g
  • Protein: 24g


Calories: 302kcal | Carbohydrates: 29g | Protein: 24g | Fat: 10g | Saturated Fat: 4g | Sodium: 119mg | Fiber: 7g | Sugar: 9g


  1. MC on January 7, 2022 at 10:24 am

    5 stars
    Great Friday breakfast! I’ve made this a few times. Quick callout that baking powder is listed in the description of the recipe, but not in the actual ingredient list.

    • Derek Howes on February 23, 2022 at 2:40 pm

      Good looks MC! Thank you – I fixed that.

  2. kush on September 22, 2021 at 11:19 am

    just made this cake , now will make it every morning

    • Derek Howes on September 23, 2021 at 5:23 pm

      Glad you liked it my friend! Thank you for the feedback.

  3. Linda on April 3, 2021 at 6:58 pm

    5 stars
    I just made this… and devoured it! Both my husband and I loved it! Thank you so much for a solid good tasting and textured mug cake! I omitted the vanilla and put in cinnamon powder (bc I polio it in all my baked things). It’s also a great size, not too small not too big! I’m definitely going to make this more often!

    • Derek Howes on April 7, 2021 at 10:39 pm

      Love it Linda! Glad you both enjoyed it!!! Thank you

  4. Mark on April 29, 2020 at 8:09 am

    Made this this morning. Awesome, thanks for all of the great recipes. I made the Delicious Chocolate Protein Oatmeal Skillet a few days ago. Family loved it!

    • Derek Howes on May 27, 2020 at 6:47 pm

      Love it Mark! Thanks for the feedback.

    • Jess on June 11, 2020 at 1:15 pm

      4 stars
      I say super gnammy!

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