These muffins are a fun take on the classic banana muffins. These oatmeal banana muffins with streusel topping are easy to make and so delicious. Moist, full of banana flavour, and loaded with rolled oats. The muffins are also topped with a brown sugar oat streusel.
These muffins are so delicious and easy to prepare. If you're bored of regular banana muffins and looking for a change then this recipe is for you!
WHY YOU’LL LOVE THESE Oatmeal Banana MUFFINS
Streusel topping. These muffins are topped with a sweet and oatmeal streusel topping, which adds a little crunch.
Easy to make. This recipe comes together very easily and is all done by hand.
Moist. The muffin itself is soft, moist, and fluffy. The perfect muffin texture!

How to Make Oatmeal Banana Muffins
Preheat oven to 425F and line your muffin pan with 12 liners.
Making the Streusel Topping
In a small bowl mix the melted butter, brown sugar, rolled oats, and flour together. Set aside. The streusel will become more crumbly while it sits.

Making the Muffin Batter
In a large bowl mash the bananas until there are no large pieces left. Mix in the sugar. Followed by the egg and oil. Mix well to combine.
In a medium sized bowl whisk together flour, baking powder, baking soda, and salt.

Dump the dry ingredients into the wet mixture. You want to fold in the dry ingredients and be careful not to over mix (this will result in dry muffins). Once there are no more flour streaks stop mixing. Fold in the rolled oats.

Divide the batter evenly amongst the muffin tins. Evenly sprinkle the streusel mixture on top of each muffin tin.

Bake in the oven for 5 minutes at 425F then reduce oven temperature to 350F and bake for another 15 minutes or until a toothpick inserted into the middle of the muffin comes out clean. Let them cool to room temperature in the pan before removing.

FREQUENTLY ASKED QUESTIONS
STORING THE MUFFINS
These muffins are best eaten on the day you bake them. After that the topping becomes moist and no longer crunchy. You can store these muffins at room temperature for up to three days.
DO I NEED TO BRING MY EGG TO ROOM TEMPERATURE?
Yes you do. Room temperature eggs break down easier in the batter. This means less mixing, which gives you a fluffy moist muffin. If you forget to take your egg out of the fridge (I always do) just run your egg under warm water for a few minutes.
WHAT DOES SPOONED AND LEVELLED FLOUR MEAN?
Spooned and levelled flour refers to the way of measuring flour. To properly measure flour you should scoop spoonfuls of flour into your measuring cup and then level off the access by scraping with a knife. Scooping the measuring cup directly into your flour causes the flour to compress and you will get more flour than the recipe calls for.
Can I Use Quick Oats?
No, you want to be sure to use rolled oats, also called old fashioned oats. These give the best texture.

If you make these oatmeal banana muffins with streusel topping please leave a star rating and comment below!
For more delicious baking ideas you can follow me on Pinterest and Instagram @jessiebakestreats
More Banana Recipes to Love
- Banana Chocolate Chip Muffins
- Banana Nut Crunch Muffins
- Chocolate Chip Banana Bread
- Bakery Style Banana Muffins
- Classic Moist Banana Bread

Oatmeal Banana Muffins with Streusel Topping
Equipment
- muffin pan
- large bowl
Ingredients
Muffins Base
- 3 large ripe bananas
- 3/4 C white sugar
- 1 large egg at room temperature
- 1/3 C vegetable oil
- 1 & 1/4 C all purpose flour spooned and levelled*
- 1 tsp baking powder
- 1 tsp baking soda
- 1/2 tsp salt
- 1/2 C rolled oats
Streusel Topping
- 2 tbsp salted butter melted
- 3 tbsp all purpose flour
- 2 tbsp rolled oats
- 2 tbsp brown sugar
Instructions
- Preheat oven to 425F and line your muffin pan with 12 liners.
Streusel Topping
- In a small bowl mix the melted butter, brown sugar, rolled oats, and flour together. Set aside. The streusel will become more crumbly while it sits.2 tbsp salted butter, 2 tbsp rolled oats, 2 tbsp brown sugar, 3 tbsp all purpose flour
Muffin Batter
- In a large bowl mash the bananas until there are no large pieces left.3 large ripe bananas
- Mix in the sugar.3/4 C white sugar
- Add the egg and vegetable oil and mix till combined.1 large egg, 1/3 C vegetable oil
- In a medium sized bowl whisk together flour, baking powder, baking soda, and salt.1 & 1/4 C all purpose flour, 1 tsp baking powder, 1 tsp baking soda, 1/2 tsp salt
- Dump the dry ingredients into the wet mixture. You want to fold in the dry ingredients and be careful not to over mix (this will result in dry muffins). Once there are no more flour streaks stop mixing.
- Fold in the rolled oats.1/2 C rolled oats
- Divide the batter evenly amongst the muffin tins.
- Evenly sprinkle the streusel mixture on top of each muffin tin.
- Bake in the oven for 5 minutes at 425F then reduce oven temperature to 350F and bake for another 15 minutes or until a toothpick inserted into the middle of the muffin comes out clean.
- Let them cool in the pan till they're room temperature. Enjoy!
Erin
Turned out amazing! Sweet and rich and not dry at all. Was very pleased on how accurate the baking time was. They were perfect right at 15 minutes. Can’t wait to have some for breakfast with a drizzle of honey and a dash of cinnamon <3
Jessie M
Hi Erin, thank you so much for the review! I'm happy to hear that you liked them!!
Janet N.
These muffins are so tasty!! I especially love the crunch of the streusel topping. I don't think I can go back to plain banana muffins, this will definitely be my go to banana muffin recipe from now on!
Rajani Kandarpa
These muffins are utterly delicious and so simple to make. I added a few chocolate chips to the kids version and they loved it. This is going to be my go to recipe for banana muffins going forward.
Jessie M
Thank you so much!! I'm so happy your family enjoyed them!
Andrew
Love this recipe and it’s a hit with family and friends! I’m a huge fan of pecans so I add a bit to the streusel. They come out great everytime!
Zahraa
I baked this as per directions but the muffins had a sour taste in the lower half. i used frozen bananas and added 2 table spoons chia seeds. Any idea how the flavour can be sour??
Jessie M
Hi,
I'm sorry I'm not sure why that happened. I've baked these muffins a dozen times and I have never found them to be sour. I have also never added chia seeds to the muffins. It could be that maybe your eggs or another ingredient was passed its prime?
Loretta Lopez
I’m not a banana bread/muffin eater but I had several bananas I needed to use before they went bad. Found this recipe and they were delicious light and fluffy.
I made some alterations to the recipe: 2/3 C sugar instead of 3/4 C. Used some cacao dulcey
Disks and walnuts.