Healthy Single-Serving Peanut Butter Banana Microwave Cake

Healthy Peanut Butter Banana Microwave Cake

Whenever I buy a bunch of bananas I always always always have a few leftover that I don’t feel like eating plain on their own.  And sometimes I just don’t have the time to bake a whole loaf of banana bread.  So I make this super quick microwave cake…  a single-serving microwave cake…  a peanut-butter-infused banana microwave cake.

Healthy Peanut Butter Banana Microwave Cake

Healthy Peanut Butter Banana Microwave Cake

Healthy Peanut Butter Banana Microwave Cake

Did I mention that this super quick, single-serving, peanut-butter-infused banana microwave cake is also healthy?  It’s filled with fruit and healthy fats, without any oil added.  It’s packed with fiber and protein, without any eggs or protein powder added!

You won’t believe this soft and sweet cake is gluten free and vegan, all for you and only you  🙂

Healthy Single-Serving Peanut Butter Banana Microwave Cake (refined sugar free, gluten free, vegan)

Yield: one serving


  • 7g (1 tbs) Ground Flaxseed
  • 1/3 cup Unsweetened Vanilla Almond Milk
  • 1/3 cup Mashed Banana
  • 2 packets Truvia (or sweetener of choice)
  • 1/8 tsp Salt
  • 30g (1/4 cup) Oat Flour
  • 30g (1/4 cup) Peanut Flour
  • 1 tsp Baking Powder


  1. In a medium-sized bowl, stir together the flax and almond milk.
  2. Mash the banana, measure 1/3 cup and stir into the flax mixture.
  3. Stir in the truvia and salt, then stir in the oat flour.
  4. Add the peanut flour and stir well, making sure there are no clumps (stir ~1 minute).
  5. Last, stir in the baking powder, then pour into a 5" baking dish and microwave for ~5 minutes + 30 seconds. Let cool slightly and dig in!


This recipe is: sugar free, high fiber, high protein, gluten free, vegan!

Healthy Dessert Blog

Now that’s what I call a balanced breakfast lunch and dinner and dessert!  With only 9g of healthy fats, 12g of fiber and 24g of complete protein, you sure can’t go wrong.  Far better than this microwave cake, which has a whopping 72g of fat (!!!), 2g of fiber and 16g of protein…  and refined flour and white sugar.

Healthy Peanut Butter Banana Microwave Cake

Takes a few minutes to make and a few minutes to “bake” …  run to your microwave.  NOW!  😉

20 comments on “Healthy Single-Serving Peanut Butter Banana Microwave Cake

  1. Hello!

    I’m wondering what oven temperature you would cook this cake at and for how long? I don’t use microwaves at all but would love to try this!

    Thanks so much!

    • dessertswithbenefits

      I haven’t tried making this in the oven, but I would guess it would bake at 350 for ~30 minutes? Or just until the surface is firm and springs back when tapped. I hope you like the recipe!

  2. Wow–I love the looks of this recipe!! Do you think all the flour used could be peanut flour? I’m not used to baking with peanut flour much, so I’m not sure how it might change things. 🙂

    • dessertswithbenefits

      Peanut flour tends to make things really dense and rubbery, so I would recommend keeping the oat flour in there. Plus, the oats and peanut butter create a complete protein, while peanuts alone are an incomplete protein 🙂

  3. This looks delicious! Your microwave cakes make the best breakfasts! I can’t get enough of them, so it will be great to try a new recipe. I haven’t been able to find peanut flour anywhere, but I do have some PB2 powdered peanut butter. Is that the same thing? I hope it will work because I really want this for breakfast tomorrow.

    • dessertswithbenefits

      PB2 is similar to peanut flour, it just has a couple more ingredients while peanut flour is made from 100% peanuts. I haven’t tried this with PB2 but hopefully it works! 🙂

  4. Hello,

    This sounds amazing. Banana’s and PB are two of my favorite foods. Unfortunately, I just found out I have an allergy to Banana’s. 🙁 Is there something I can substitute for the banana in this recipe?

    Love your Blog!!

  5. Oh wow, a microwave cake with all the goodness of PB and bananas? I would definitely try!!

  6. This looks amazing. Bananas are one of my favorite foods ever. I can’t wait to try these.

  7. What a great recipe! It looks so yummy!!

  8. I love your single-serving recipes. I just made this and it was very good. It reminded me of banana bread.

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  12. Looks great! Can I replace peanut butter flour with Powered peanut butter or PB2…if so would amount be the same? Thanks

    • Debbie-
      Thanks so much Debbie! I haven’t tried this recipe using PB2 but you can give it a shot!
      PB2 already has sugar and salt in it, so you should reduce the Truvia to 1 packet and reduce the salt to 1/16 tsp or omit it completely 🙂
      I hope this substitution works out okay, enjoy!!

  13. How much honey can I replace for the truvia?

  14. Just made this one and it’s soooo good! I put it in the microwave for less than 4 minutes and it still came out delicious. Thanks for the recipe!

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