Four (4) ingredient blueberry muffins are dense, moist, and delicious. They’re made with only 4 ingredients – blueberries, banana, oatmeal, and milk! We love these muffins for breakfast or even a midday snack!
You may remember the 3 ingredient healthy banana oatmeal muffins I invented for my gluten-free daughter last year?
Well, this year I decided to add some frozen blueberries which we picked at their peak of ripeness last year to the recipe. My kids LOVED them so I wanted to share this easy and nutritious recipe.

Want to make my 4 Ingredient Blueberry Banana Muffins? Here is what you will need:
Makes 8 muffins—perfect for freezing!
Ingredients:
- 3 cups of old fashion oats
- 1/4 cup almond or regular milk
- 5 average sized bananas
- 1 cup blueberries

Directions:
Preheat oven to 350 degrees.
Lightly grease a muffin tin.
In a food processor, combine all 4 ingredients and mix on medium speed until thick, and creamy-do not over-mix.
Fill muffins tins, and bake for 18-20 minutes
*use a toothpick to test center. If it comes out clean, they are done-if not add another minute or two. These are healthy muffins and meant to provide nutrition. They are nothing like the average flour muffins, and are very heavy and filling.

***Please note:THESE MUFFINS ARE ONLY AS SWEET AS THE RIPE FRUIT USED. THEY ARE VERY DENSE, BUT THAT IS TO BE EXPECTED, AFTER ALL THEY ARE MADE WITH OATMEAL. THE BANANA TASTE WILL OVER POWER THE BLUEBERRY -YOU ARE USING 5 BANANAS! YOU CAN ADD NUTS, OR SKIP THE BERRIES IF YOU WANT A DENSE BAKED OATMEAL BANANA MUFFIN.
As you can see, these muffins make a perfect healthier breakfast idea! They can last up to 2 days in an airtight container.
Alternatively, they can be frozen for months and heated in the microwave for best taste.
Get the printable recipe below for these delicious Blueberry Banana Oatmeal Muffins!
4 Ingredient Blueberry Banana Oatmeal Muffins
Ingredients
- 3 cups old fashion oats
- 1/4 cup almond milk can you regular
- 5 bananas medium sized
- 1 cup blueberries
Instructions
- Preheat oven to 350 degrees.
- Lightly grease a muffin tin
- In a food processor, combine all 4 ingredients and mix on medium speed until thick, and creamy-do not over-mix.
- Fill muffins tins half-way.
- bake for 18-20 minutes or until an inserted toothpick in the center on the muffins comes out clean.


Found this recipe on Yummly and was excited that I had all of this in my pantry. Very disappointed. Did you leave out ingredients? Just made these and muffins had only the taste of banana. SUPER dense, which I don’t mind, but the inside never cooked through.
Nope, those are all of them. They are suppose to be dense and filling. You should have cooked them a bit longer because oven vary. If blueberries are not seasonal they will not be sweet.
They cooked 40 minutes and not cooked through. Thanks for the tip though.
Having the same problem with the strawberry banana muffins. After 40 minutes they still aren’t baked through. Just put them back in for another 20.
How full should I have filled the muffin tins? Is it possible that over filling them is the problem?
Those muffins look delicious and a perfect pairing with Ester-C to get your day started off right! #client
My immune system needs all the help it can get. These muffins sound good.
Those muffins look great! And I take Ester-C daily for immune support.
These look so delicious. I will have to make some instead of Banana bread next time. I will have to look at getting some Immune Support.
I have been sick the last few days and an extra boost of vitamin C sounds like something I could really use!
What a great recipe. I am a huge fan of vitamin C especially this time of the year!
Do you use actual oatmeal in this recipe and not just oats? Is it just the boxes oatmeal you eat for breakfast?
No, it is actually old fashion oats-I must update that! Thanks!
I love finding ways to boost my immune system for when we travel. These looks super tasty and delicious.
What a great wait to bump up your immunity! Looks tasty!
I could stand to boost my immune system. Especially when I’m traveling. Ester-C sounds like a good way to do so.
Those muffins look so yummy! I love that it has 2 servings of fresh fruit and is also gluten free!
I’ve never tried Ester C, but will look into it. And, that muffin recipe looks so yummy!
I was taking an immune support supplement and recently ran out. I might try this one next.
Muffins are a great way to start your day. Not to mention the good you are doing your body with the immune support. :)
I love blueberries. Those muffins look so very good. :)
I am so excited for this easy recipe! Thanks so much!
I need to get some Ester-C because I really can’t take getting sick again. We were sick for a week earlier this month and it was awful.
Mmm, delicious muffins! This year I’ve done really well in looking after my health. I’m eating much better foods compared to last year. I should add an immune support to that, I could use it.
Oh that recipe sounds amazing. I need to up my immune system, as well. Thanks for posting.
We have the same problem. We feed the kids tons of fresh fruits and veggies, lean meats, whole grains and somehow we end up eating frozen pizza. We are trying to build more supplements into our diet as well.
We take Ester-C regularly to combat colds. What we don’t do is make these awesome muffins. We will now, though! =D
I drink a lot of OJ for vitamin C, but I think I’ll have to drop that and switch to Ester-C. It has A LOT more vitamin C in it, and I HATE being sick.
That’s a big time one-two punch against getting sick. Vitamin C is great for the immune system, and a muffin like that is full of good stuff for your body. Thanks!
Those muffins sound awesome. I love how easy they are to make. NOM.