Banana Oatmeal Muffins

These Banana Oatmeal Muffins combine sweet bananas, brown sugar, and chewy oats. They are perfect as a snack or for breakfast. You will love these muffins.

I love the combination of bananas and oats! After making my Banana Oatmeal Cookies, I knew I had to make some muffins soon.

These muffins are full of banana and oat flavours. All you need are a few simple ingredients, a spatula, 2 bowls, and a whisk. No electric mixers required!

Ingredients Notes

Full recipe and ingredients are in the recipe card below. Feel free to scroll through this section to view certain key ingredients we’re using!

All-purpose flour – This flour is used for the muffins.

Bananas – 2 large bananas are used. If using frozen bananas, thaw and drain any excess liquid before adding into the bowl.

Brown sugar – I used dark brown sugar, but light brown sugar works as well!

Cornstarch – Used to enhance the texture.

Cinnamon - Adds some depth to the flavour!

Eggs – Must be at room temperature before starting your bake.

Oil – I used a flavourless oil. You can use any type of oil, but flavoured ones will slightly change the taste.

Oats - Make sure to use rolled oats, also known as large flake oats. Quick oats will not work for this recipe!

Sour Cream – The secret ingredient that makes these muffins so soft and moist! This also stabilizes the muffins and brings out soo much texture.

Step by step instructions

Here is how to make and bake these Banana Oatmeal Muffins. You will need a 12 muffin tin, muffin liners, 2 large mixing bowls, a spatula, and a whisk.

Step 1 – Prep. Line 2 muffin tin with 12 liners and set aside. If you need a recommendation, this is my favourite tin. Mash bananas in a large bowl.

Step 2 – Mix together dry ingredients. In a medium-sized bowl, add in flour, cinnamon, oats, salt, cornstarch, baking powder, and baking soda. Using a spatula, mix until just completely combined.

Step 3 – Whisk wet ingredients. In a large bowl, whisk mashed bananas, oil, eggs, vanilla, sour cream, and brown sugar. Whisk until well combined. There may be lumps from the bananas but that is okay.

Step 4 - Combine dry and wet ingredients. Add the dry into the wet and using a spatula, gently fold until a soft batter forms.

Step 5 – Scoop. Evenly divide the batter between 12 liners, they should be almost or all the way full. Using a cookie scooper helps big time to minimize the mess. Sprinkle some white sugar on top.

Step 6 – Bake. Bake the muffins at 375°F for 20-25 minutes. The muffins are ready when a toothpick inserted comes out dry with no wet batter.

These muffins stay fresh covered at room temperature for up to 3 days, and in an airtight container in the refrigerator for up to a week!

Expert Baking Tips

Here are a few expert baking tips from my kitchen to yours

• Strain off excess liquid. As bananas thaw, they let out a lot of liquid. This must be strained and removed before using the thawed bananas. If you add the liquid, it will ruin the muffin batter. I recommend draining the excess liquid before mashing and measuring out your bananas.
• Use a gram scale. I cannot emphasize this enough! It is the most accurate way of measuring your ingredients in the kitchen. This is one of my favourites.
• Do not over-mix! A big reason muffins don’t rise or turn out tough is because the batter is over-mixed. Once you see no flour streaks, stop mixing.
• The riper the banana, the better. You want to use bananas that are brown, spotty, and super-ripe. This will give you that sweetness!

FAQ

Can I use frozen bananas?

Yes! But you must strain the liquid out of the bananas. As bananas thaw, they let out a lot of liquid. Make sure there is no extra liquid before mashing and measuring out your bananas.

Do I have to add sour cream?

Yes! This is one of the main ingredients in this recipe. If you are looking for a different banana muffin recipe with yogurt or kefir instead, try My Favourite Banana Muffins.

Do I have to add oats?

Yes! This is a Banana Oatmeal muffin recipe. For regular banana muffins, try My Favourite Banana Muffins.

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