A super easy & delicious banana mug cake for one person!
Got breakfast?
In less than 5 minutes, this bakery-style banana mug cake can be yours. And the entire recipe is under 100 calories… including the streusel topping! It’s the perfect solution for those days when you’re craving something more exciting for breakfast than the same old bowl of oatmeal. Who wouldn’t want to eat cake for breakfast?!
The recipe is based on the popular One Minute Chocolate Mug Cake.
So if you are a fan of that recipe, be sure to give this banana mug cake a try, and it might just become your new favorite!
Eat plain or top with coconut butter or my recipe for Healthy Glaze Icing.
P.S. My computer’s spellchecker keeps suggesting I change the word streusel to stressful.
Definitely not the same thing!!
Banana Mug Cake For One
Banana Mug Cake

Ingredients
- 3 tbsp spelt, white, or oat flour
- 1/4 tsp baking powder
- 1/16 tsp salt
- pinch stevia, or 2 tsp sugar
- 1 tbsp plus 2 tsp water
- 1 tbsp overripe mashed banana (Banana-Free Version Here)
- 1/4 tsp pure vanilla extract
- For the top, combine: 1/4 tsp cinnamon, 2 tsp brown sugar or xylitol or sucanat, 2 tsp overripe mashed banana, tiny pinch salt, 1 tsp buttery spread OR 1 tsp more mashed banana, optional crumbled pecans or walnuts.
Instructions
Grease a small mug or 1-cup dish, and set aside. In a small bowl, combine all cake dry ingredients, then add all cake liquid ingredients and stir. Transfer the cake batter to the prepared dish, then spoon the streusel evenly on top. Either bake at 350F for 14 minutes or until a toothpick comes out clean OR cook in the microwave until a toothpick comes out clean. (Microwave times will vary depending on wattage.) If you don’t want to eat the cake directly from the mug or dish, allow it to cool completely. Then run around the sides with a knife and it should pop right out! Eat plain or topped with coconut butter or my Healthy Glaze Icing, linked earlier in the post.
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Sounds delicious – if we had a microwave! 🙂 I’m going to have to look around at your other recipes, though. Grandma’s Famous Snickers Bars look tempting.
However, you tagged it as gluten-free, but you list spelt, white or oat flour. I’ve been learning a lot about this since my mother was diagnosed as gluten-intolerant last year. Spelt has gluten. Although oat flour technically *should not* have gluten, I know my mother can’t tolerate it. I want her to try Bob’s Red Mill gluten-free oat flour, but she’s had such bad reactions to oats that she’s nervous. Have you found success with a certain brand?
Just Plain Marie – i eat gluten free and i use Pamela’s gluten free flour mix of Bob’s Red Mill gluten free flour blend, but i like Pamela’s better
PS: this is unrelated but grandma’s famous snicker bar’s is not a recipe from this blog
i mean or Bob’s Red Mill gluten free mix
I’ve not tried this particular recipe with the Bob’s gf all-purpose mix, but I have had enormous success using it in other recipes.
I realized that after I clicked through. However, I then came back and looked through your stuff. 🙂 So you didn’t lose a reader. I shall definitely have to keep an eye on your recipes and pass some along to Mom.
i’m not Katie, i’m just a reader who is gluten free and wanted to help 🙂
Okay, I’m looking like more and more of an idiot. Not that that’s particularly unusual some days!
I got your reply in my email, came through, couldn’t find it, so just made a new comment. THEN as I’m looking at the pretty picture in the About, I’m thinking “Katie? Wait? Wasn’t it Hannah that I responded to? Oh, must have been a guest writer.”
Can I pretend it’s still Monday? 😀 Besides, there’s a comment from sassygirl to Hannah about “ingredients for your mom” and I think she means me, not Hannah. 😀
oh its fine!i would of been confused also!
i also am kinda confused- you are the one who needs a gluten free mix without oats, not me!
hi Hannah!
please check the ingredients for your mom,
but I’m a huuuuge fan of nuts.com and their
gf all purpose baking flour. it has NO xanthan gum
included in the mix and I have been baking Katie’s
recipes, waffles, cookies with great results.
you can find the co. online. ships really FAST. 🙂
good luck!
p.s. and their gf flour mix does NOT include oats!
thank you for the help! i’ll definitely look into that ! 😀
Just Plain Marie,
I don’t have a microwave either, but I’ve made this kind of cake in the oven often. You can just bake it at 350°F for 12-15 minutes (that’s what usually works for me with recipes like this one) 🙂
Made it in the oven and it was SO GOOD!
Oh, yay 🙂
i cannot wait to make this! hopefully i can run to the store real quick and grab some bananas so i can make this! thank you for the recipe!
This sounds really good! Definitely more of a snack for me than breakfast though. No way I could start my day off with just this – no matter how tasty it is!
xx Kathryn
http://www.throughthethicket.ca
This looks like a great addition to my breakfast options. Like Kathryn mentioned, this wouldn’t be a stand-alone breakfast for me, but I can definitely eat it along with something else to make a good (and yummy!) start to my day!
Definitely did not mean to imply this would be a stand-alone breakfast for most people. I am a proponent of big breakfasts as well 🙂
I didn’t think you were implying that either 🙂 I’ve been reading your blog long enough to know that you are in full support of all-around healthy eating (not starving ourselves!)
I’m not actually a vegan, so for me this would pair well with an egg or a yogurt to give me a well rounded breakfast. Currently I’ve been eating an english muffin most morning so I will just sub this in to make a yummy treat!
Would this recipe scale up if I wanted to make a whole loaf of bread like this? Or, does anyone know of a similar recipe to make this on a larger scale? Thanks!
Katie does have a few loaf recipes (including banana bread, just type in the search bar) if that’s what you’re looking for
Does this recipe scale up to make a whole loaf with it, or is there a similar recipe that can be used to make more? Thanks!
https://chocolatecoveredkatie.com/2014/06/02/chocolate-chip-banana-bread-mini-muffins/ try this one
I got your book in the mail yesterday!!!!!!!!! I haven’t had time to pour over it yet but I am SO excited to get into it. Yay!!!!
🙂
If I’d like to make 12 muffins like this, how should I modify the measurements? Thank you
https://chocolatecoveredkatie.com/2014/06/02/chocolate-chip-banana-bread-mini-muffins/
Thank you!
Sounds very good! I have to make and I will definitely pin it:)
Love how easy this is to throw together and not feel so guilty about it!
This looks delicious. I love how easy it is plus that is a serving for one. Warm cake in the morning. Yes, please!
I’m so excited to try this recipe. So delicious! So inspirational!
http://www.trangscorner.com
Love the low fat recipe! 🙂 So awesome, please keep them coming!
Thanks for including oven-instructions, I don’t have a microwave, but I looove banana bread! This cake mug looks amazing! x
I love banana cake. It’s such a useful recipe when you have no idea what to do with the bananas you still haven’t got around to munching on. I love the little banana in a cup idea it’s amazing! I can’t wait to try this. Thank you for sharing!
xx
Lexxi-Anne
http://lexxiannespoonful.blogspot.co.uk/
This looks amazing and I’m sure it would make an awesome after school snack!
Could you feature some paleo friendly, very low carb treats? 🙂
Check out YouFreshNaturals.com or their Instagram. They’re the makers of the GF/vegan coconut butter in damn delicious flavors, and their recipes are 100% paleo and the directions look so easy. I actually had to stop looking at their Instagram because I’d get viciously hungry every time I’d see their new “creation”, and I can’t eat paleo because of my bad gallbladder. But check ’em out, make their recipes, and make me jealous!
This looks awesome, and I must say I am loving your new cookbook! Just made the flourless oatmeal cookies and they are hard to put down! Question: When are you going to come out with a single serve cookbook?? 🙂 Thanks for all of your recipes Katie!
Just made these, and they were delicious, but I was confused about the streusel. Mine was liquidy, not crumbly like a normal streusel. I guess it makes sense that it would be like that because it has no flour and it has mashed banana (which is basically a liquid). But the word “streusel” is confusing. Do you think maybe you should stick with “topping”?
Just made this, and it was delicious, but I was confused about the streusel. Mine was liquidy, not crumbly like a normal streusel. I guess it makes sense that it would be like that because it has no flour and it has mashed banana (which is basically a liquid). But the word “streusel” is confusing. Do you think maybe you should stick with “topping”?
Anyway, thank you for the recipe. I loved it!