Peanut Butter Banana Mug Cake

There seem to be hundreds of “mug cake” recipes floating around the internet lately…

peanut butter banana cake in a blue mug

…and with good reason.

A single-serving cake that’s easy to prepare is genius.

Most of the mug-cake recipes I’ve seen call for refined flours and sugars, and are then microwaved for a quick treat. That may sound appealing to some, but I felt like an upgrade was in order–> one that doesn’t sacrifice ease or flavor.

This particular “mug cake” uses only a banana for sweetness, with no added flours or sugars. The result is a truly delicious, and guilt-free treat!

Peanut Butter Banana Mug Cake
serves 1

Ingredients:

1 very ripe banana (with brown spots!)
2 Tablespoons natural peanut butter, or nut butter of choice
1 whole egg
1/4 teaspoon baking soda
dash of cinnamon (optional)

Directions:

If using an oven, preheat to 350F.

Combine all of the ingredients into a mug, and mix until relatively smooth.

mixing ingredients of peanut butter banana mug cakeBake at 350F for 30-35 minutes, until the top is golden brown and the center is firm.

peanut butter banana cake in a blue mugAllow to cool for 5 minutes, then dig in!

Note: Because I don’t own a microwave, the oven is my preferred method for baking. I think it’s worth the wait, but of course, if you prefer the microwave, please feel free to use it–> I’d guess about 60 seconds would do the trick, but use your best intuition, as microwaves vary. (And please let me know how it works for you!)

4.45 from 18 votes
Print
Peanut Butter Banana Mug Cake
Prep Time
5 mins
Cook Time
30 mins
Total Time
35 mins
 
This particular “mug cake” uses only a banana for sweetness, with no added flours or sugars. The result is a truly delicious, and guilt-free treat!
Course: Dessert
Servings: 1
Calories: 356 kcal
Author: Detoxinsta.com
Ingredients
  • 1 very ripe banana (with brown spots!)
  • 2 Tablespoons natural peanut butter , or nut butter of choice
  • 1 whole egg
  • 1/4 teaspoon baking soda
  • dash of cinnamon (optional)
Instructions
  1. If using an oven, preheat to 350F.
  2. Combine all of the ingredients into a mug, and mix until relatively smooth.
  3. Bake at 350F for 30-35 minutes, until the top is golden brown and the center is firm.
  4. Allow to cool for 5 minutes, then dig in!
Recipe Notes

Note: Because I don't own a microwave, the oven is my preferred method for baking. I think it's worth the wait, but of course, if you prefer the microwave, please feel free to use it--> I'd guess about 60 seconds would do the trick, but use your best intuition, as microwaves vary.

Hope you enjoy it!

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Comments

Mara

Would an flax or chia egg work?

Victoria

Added cinnamon and vanilla, and used Almond butter over PB, but this tasted amazing cooked in the microwave for 2 minutes! Thanks for the recipe!

Dawn

I tried it with a mix of peanut butter and almond butter, and with speculaas spices… that’s a Dutch mix that is popular around December time. I put it in the micro for 1,5 minutes, in a slightly bigger bowl, which was a good thing, because it grew a lot! It was absolutely scrummy. 🙂 Next time, in order to be Paleo, I will use almond butter, and add more of the speculaas spices for flavour. Thanks so much for the idea!

Cindy

DELICIOUS! I followed the recipe as written (except being a chocolate lover, I couldn’t resist throwing in a few milk chocolate chips that I had on hand). I wanted to try the fastest option so I used the microwave for a little less than 2 minutes then let it set for 5 minutes. It tasted great! Hard to believe I was eating fruit and protein with no added sugar, but tasted like I was eating a dessert. It did remind me more of bread pudding texture than a muffin but I liked that texture. GREAT use for that one last banana that always seems to get overripe before I can eat it. Thank You!

Kelly

Thanks, awesome recipe. As the wife of a military member, I’m always looking for that quick single dessert, it saves on temptation. I did make a few changes like adding 1 tsp of gluten free flour and a drop of Nutella in the center of the mug. I had to microwave it for 3 minutes, but my oven is a bit small. Will try it next time with coconut flour and a bit of coconut milk, as that flour is a moisture hog! Caramel seems like a natural choice as well. Thanks again.

Shelley

I used PB2 peanut butter powder, 2 Tbsp with 1 Tbsp water, with 1/4 tsp olive oil and microwaved for 80 seconds. Turned out well!

Rosemary Clare

Hello Detoxinista! Thank you for the inspiring recipe. In keeping with my usual nature, I allowed it to serve as a platform upon which to build, and the resulting batter is baking in the toaster oven as I type. It smells divine! I substituted a “flax egg” for the egg, added a tablespoon of oats and a half a tablespoon of coconut flour (for a more cake-like texture), a drizzle of maple syrup, vanilla extract, a touch of sea salt, and dark chocolate chips. I also melted a pat of butter in my small Pyrex dish before adding the cake batter. It tasted delicious straight off the mixing spatula, and I am quite certain that it will turn out very nicely! 🙂

Pat

Love this, I’m really loving this as a new go to breakfast treat! I like that there are no nut flours in it, love nut flours and the mug cakes I’ve tried out with them but this is tasty without the texture you get with the flours. I used cashew butter to be more paleo. I microwaved mine as I couldn’t wait and it took a good couple minutes. It was light and fluffy. I didn’t mind it was a little gooey on top… reminded me of my cake making days and the raw mixture … another life … mixed a little coconut cream and honey together (another new fav) a little dollop on top and it was delish! I will defiantly try the oven version for an afternoon treat!
Thank you ?

Haydee

Delicious! I didn’t have really ripe bananas on hand so i added a little maple syrup and raisin. I also added a little butter in my mug before pouring in the “batter” and the bottom did stick to the mug. I’ll have to either spray the inside or add a little more butter next time. Definitely will have this again. Thank you!

Amy

Do you put the coffee mug in the oven ?

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