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Home » All Recipes » Snacks

Modified: Nov 27, 2023 · Published: Jan 31, 2022 by Tati Chermayeff · This post may contain affiliate links · 14 Comments

Blueberry Banana Oatmeal Muffins

5 from 21 votes
Jump to Recipe Pin Print
Blueberry Banana Oatmeal Muffins (Healthy + Gluten-Free)
Blueberry Banana Oatmeal Muffins (Healthy Meal Prep)
Blueberry Banana Oatmeal Muffins (Healthy + Gluten-Free)
Blueberry Banana Oatmeal Muffins (Healthy + Gluten-Free)

These light, fluffy blueberry banana oatmeal muffins are packed with whole grains, made with fresh or frozen blueberries, and sweetened with maple syrup. They're moist, dairy-free, gluten-free, and the perfect healthy on-the-go breakfast and snack!

healthy oatmeal blueberry banana muffins

The best healthy blueberry banana oat muffins

I love baking with oat flour - in fact, it's my favorite type of flour to use since it's light, airy, healthy, packed with whole grains, and gluten-free. I have hundreds of recipes on my blog, too, from these oat flour pumpkin muffins to these banana oat waffles to these healthy chocolate chip oatmeal bars to these chunky monkey banana pancakes.

These blueberry banana oatmeal muffins are packed with mashed bananas, juicy blueberries, old-fashioned rolled oats, and ground cinnamon. The best part is that they're secretly dairy-free, refined sugar-free, and gluten-free. There's no yogurt or butter needed in these moist and fluffy muffins.

My recipe is different from other recipes on the internet because they're a secret ingredient: lemon zest. They are naturally sweet, with a zesty lemon flavor. Wait until you try this banana-blueberry-lemon combo... SO GOOD!

I love enjoying these oat-flour banana muffins in the morning for breakfast or as an afternoon snack. My favorite part is that they are made with oat flour, which is healthier, lighter, and softer than regular flour. As you can already tell, I am obsessed with these deliciously moist and fluffy oatmeal blueberry banana lemon muffins. Everyone will love them, and I cannot wait to hear what all of you think!

Why you'll love this oat muffin recipe:

  • Oat Flour: Made with whole-grain oat flour, not refined flour.
  • Quick & Easy: Ready in under 30 minutes!
  • Refined Sugar-Free: They're sweetened with maple syrup, not sugar.
  • Fresh or Frozen Blueberries: You can use either, which makes it so easy.
  • Simple Ingredients: You need oats, coconut oil, eggs, baking soda, and bananas.
  • Lemony: Secret, but a super delicious hint of lemony flavor.
  • Gluten-Free: Make sure you use gluten-free certified oats.
  • Dairy-Free: NO butter, NO yogurt, NO sour cream!
  • Meal Prep: Easy breakfast, snack, and meal prep.
  • Kid-Approved: Kids will love them.
  • Try these blackberry muffins and these banana crumb muffins next!
inside of oatmeal blueberry banana lemon muffins

Ingredients needed in oat flour muffins

You only need a few healthy ingredients to make these super moist oat-flour blueberry banana muffins! They are light and fluffy with the perfect banana flavor. Trust me, you'll try these muffins once and be hooked! Here is a list of everything you need so you are prepared:

  • Banana: Start with 1 cup of mashed, overripe, spotty bananas for delicious and healthy muffins.
  • Eggs: Provide binding and protein to the muffin mix.
  • Maple Syrup: Sweeten without refined sugar, ensuring moistness and perfect sweetness.
  • Coconut Oil: Adds extra moisture without a coconut taste; alternatively, use melted butter or vegetable oil.
  • Vanilla Extract: This adds the best flavor!
  • Oat Flour: Use homemade oat flour for a light, soft, and gluten-free texture. Unlike all-purpose flour, oat flour is made by blending rolled oats and is gluten-free, healthy, and packed with whole grains.
  • Rolled Oats: Adding rolled oats gives these banana muffins a wonderful texture.
  • Baking Soda: This helps the muffins rise.
  • Baking Powder: In combination with some baking powder.
  • Blueberries: You can use fresh or frozen blueberries for the best fresh and sweet flavor.
  • Lemon: Plus, some lemon zest for the best lemon flavor.

Kitchen tools needed

Making blueberry banana oatmeal muffins is so easy. Here is a list of kitchen tools you'll need so you are prepared and ready to bake:

  • Mixing Bowl
  • Spatula
  • Whisk
  • Muffin Tin
  • Muffin Liners
  • Measuring Tools: 1 teaspoon, 1 Tablespoon, ¼ cup, ⅓ cup, and 1 cup.
all ingredients in blueberry banana oatmeal muffins in bowls with labels

How to make banana blueberry oatmeal muffins

These blueberry banana oat muffins are not only super delicious but also healthy and gluten-free! Here are detailed step-by-step instructions with pictures for visual reference so any level cook can make them. The full recipe and ingredient measurements are in the recipe card's bottom of this page.

Step 1:

First, preheat oven to 350°F. Then, line a muffin tin with liners.

Step 2:

Next, whisk together the mashed bananas, eggs, maple syrup, coconut oil, and vanilla extract in a large mixing bowl.

Step 3:

If you make homemade oat flour, add around 1 ½ cups of rolled oats to a high-speed blender. Blend until it resembles a fine, flour-like consistency. Once ready, measure out 1 ¼ cups for the muffins.

Step 4:

Then, add oat flour, rolled oats, baking soda, and baking powder to the wet ingredients. Mix until thoroughly combined. Use a spatula to fold in the blueberries and lemon zest gently.

mashed banana, coconut oil, eggs, and maple syrup whisked together in a bowl
adding in oar flour and rolled oats to form muffin batter

Step 5:

Then, divide the batter evenly between the muffin cups, filling each cup about two-thirds full. Sprinkle extra rolled oats on top if desired.

Step 6:

Finally, bake them for 22 - 26 minutes, until golden brown and a toothpick comes out clean.

Enjoy your moist and fluffy blueberry banana oatmeal muffins!

oatmeal blueberry banana lemon muffin batter in tin before baking

Expert baking tips for oatmeal muffins:

  1. Spoon and level your flour. This is my #1 baking tip for oat flour muffins. It is super important to measure the right amount of flour by spooning and leveling it into a measuring cup. If you scoop directly out of the bag, you will add too much flour, and the muffins will be dry.
  2. Overripe Bananas: This is my #2 baking tip for these muffins. Use overripe bananas for a more intense flavor and natural sweetness in your oatmeal muffins.
  3. Let them cool before enjoying them. This is my #3 baking tip for oat flour muffins. The muffins need time to cool and bind together since oat flour has no gluten. If not, the muffins will crumble.
  4. Fresh baking powder and baking soda: This is my #4 baking tip for oat flour muffins. If your baking powder or baking soda is expired or old, the muffins will not rise, and they will be gummy.
  5. Skip the lemon: This is my #5 baking tip for these muffins. If you don't like lemony-flavored baked goods, skip it; these blueberry banana muffins are still SO GOOD!

Easy ingredient substitutions:

  1. Maple Syrup: Honey or agave syrup can be used as a substitute for maple syrup. Adjust the quantity to your preferred level of sweetness.
  2. Melted Coconut Oil: Melted butter or another neutral oil like vegetable or canola oil can be used as a substitute for coconut oil.
  3. Eggs: For each egg, you can substitute with a flax or chia egg (1 tablespoon ground flaxseed or chia seeds mixed with 3 tablespoons water). This works well as a binding agent.
  4. Rolled Oats: Quick oats can be used as a substitute for rolled oats, though the texture may be slightly different.
  5. Blueberries: You can use frozen blueberries instead of fresh. Do not allow the frozen blueberries to thaw. Add them directly to the batter and bake.
whole grain oat flour banana blueberry muffins

Frequently Asked Questions

Why are my oat flour muffins falling apart?

Your oat flour muffins may be falling apart if there's (1) not enough binding, like eggs, or (2) not enough oil to keep them moist. Make sure you follow this recipe and measure your ingredients correctly.

Are these oat flour muffins gluten-free?

Yes! These oatmeal blueberry banana muffins are gluten-free if you use gluten-free certified oats.

Can I use frozen blueberries?

Yes! You can use frozen or fresh blueberries for these banana muffins.

What makes these banana oat muffins healthy?

These oatmeal blueberry banana lemon muffins are healthy for many reasons. First, they are made with wholesome and simple ingredients. Second, they are refined sugar-free since we naturally sweeten these muffins with maple syrup and bananas. Third, they are made with oat flour, which is rich in fiber and gluten-free.

Is the lemon flavor strong?

The lemon flavor enhances the wonderful taste of these banana blueberry muffins. It is not overpowering!

How do I make homemade oat flour?

To make homemade oat flour, add around 3 – 4 cups of old-fashioned rolled oats or quick oats to a high-speed blender and blend on high for 30 – 90 seconds until it resembles a flour-like consistency. There shouldn't be any oat grains left; make sure to blend it completely so it's soft and smooth. Then, measure out what the recipe calls for by spooning it into a measuring cup and leveling it with the back of a knife.

Can I make them vegan with a flax egg?

I prefer making these muggins with eggs; however, you can substitute the eggs with two flax eggs if desired. The texture will be softer, but the muffins are still delicious.

Can you freeze oatmeal muffins?

Yes! You can freeze these banana oat muffins for up to 4 months. Simply add cooled muffins to a large freezer-safe bag. When you are ready to enjoy, microwave for 30 - 45 seconds to warm.

How to store banana oatmeal muffins:

Store leftover oatmeal blueberry banana lemon muffins in an airtight container at room temperature for 3 - 4 days or in the refrigerator for up to 5 days.

oatmeal blueberry banana muffins in a tin

If you loved this recipe, try these next!

  • Blackberry Muffins
  • Banana Pumpkin Muffins
  • Banana Crumb Muffins
  • Almond Flour Banana Muffins
  • Peanut Butter & Jelly Banana Muffins
  • Healthy Blueberry Banana Bread
  • Single Serve Banana Bread

Did you make this recipe?

If you make this recipe, be sure to comment and rate it down below. Also, don't forget to tag me @healthfulblondie on Instagram and use the hashtag #healthfulblondie so I can see your delicious creation and share it with my followers!

oatmeal blueberry banana lemon muffins

Blueberry Banana Oatmeal Muffins

These light, fluffy blueberry banana oatmeal muffins are packed with whole grains, made with fresh or frozen blueberries, and sweetened with maple syrup. They're moist, dairy-free, gluten-free, and the perfect healthy on-the-go breakfast and snack!
5 from 21 votes
Print Recipe Pin Recipe
Prep Time 5 minutes mins
Cook Time 25 minutes mins
Total Time 30 minutes mins
Serving 12 muffins

Ingredients
 

  • 1 cup mashed overripe bananas, ~2 large bananas
  • 2 large eggs
  • ¼ cup maple syrup
  • ¼ cup melted coconut oil
  • 1 teaspoon vanilla extract
  • 1 ¼ cup oat flour, spooned and leveled
  • ½ cup rolled oats
  • 1 teaspoon baking soda
  • 1 teaspoon baking powder
  • 1 cup fresh blueberries
  • 1 tablespoon lemon zest, ~2 lemons

Instructions

  • Preheat oven to 350°F and line a muffin tin with liners.
  • In a large mixing bowl, whisk together the mashed bananas, eggs, maple syrup, coconut oil, and vanilla extract.
  • HOMEMADE OAT FLOUR: If you are making homemade oat flour, add around 1 ½ cups of rolled oats to a high-speed blender. Blend until it resembles a fine, flour-like consistency. Once ready, measure out 1 ¼ cups for the muffins.
  • Add oat flour, rolled oats, baking soda, and baking powder to the wet ingredients. Mix until completely combined.
  • Use a spatula to gently fold in the blueberries and lemon zest.
  • Divide the batter evenly between the muffin cups, filling each cup about two-thirds full. Sprinkle extra rolled oats on top if desired.
    oatmeal blueberry banana lemon muffin batter in tin
  • Bake for 22 - 26 minutes, until golden brown and a toothpick comes out clean.
  • Let cool & enjoy!

Notes

Oat Flour: I highly reccomend using homemade oat flour, it is lighter and airier than store-bought. If you are using a store-bought brand, I recommend Arrowhead Mills Oat Flour.
Coconut Oil: Use refined coconut oil for NO coconut taste. Can substitute with melted butter.
Storing: Store in an airtight container at room temperature for up to 4 days or in the refrigerator for up to 5 days.

Nutrition

Calories: 147kcal | Carbohydrates: 15g | Protein: 4g | Fat: 7g | Saturated Fat: 4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Trans Fat: 1g | Cholesterol: 27mg | Sodium: 130mg | Potassium: 130mg | Fiber: 2g | Sugar: 5g | Vitamin A: 53IU | Vitamin C: 3mg | Calcium: 42mg | Iron: 1mg
Course Breakfast & Snacks
Cuisine American, Healthy
DID YOU MAKE THIS RECIPE?Please leave a comment and star rating on this post and tag @HealthfulBlondie on Instagram & hashtag it #healthfulblondie!

I only recommend products I love and use myself. In full disclosure, I may receive a small compensation for purchasing a product I recommend. Thank you for supporting Healthful Blondie!

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5 from 21 votes (9 ratings without comment)

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    5 from 21 votes (9 ratings without comment)

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  1. Stephanie gilet says

    April 04, 2021 at 11:44 am

    5 stars
    SO GOOD!! Made these for Easter and my family loved them!!

    Reply
    • Tati Chermayeff says

      May 12, 2021 at 6:46 pm

      YAY!! Thanks steph 🙂

      Reply
  2. Hayley Isenberg says

    June 25, 2021 at 11:50 am

    5 stars
    love this!

    Reply
  3. Mariana says

    January 31, 2022 at 9:33 pm

    5 stars
    So good! The lemon flavor is amazing!! Didn’t expect it.

    Reply
  4. Hadley says

    February 04, 2022 at 9:17 am

    5 stars
    LOVE LOVE LOVE! Everyone needs to try these. The best part is the lemon and the oat flour. Really good and I recommend!

    Reply
  5. Sara says

    February 07, 2022 at 7:08 am

    5 stars
    These turned out well. A little dry though. Thank you for sharing your recipe!

    Reply
    • Tati Chermayeff says

      February 07, 2022 at 7:54 am

      Thanks! Glad you liked it, might have been the type of oat flour used - some are denser.

      Reply
  6. Ashley says

    February 07, 2022 at 8:04 am

    5 stars
    I liked these a lot! Thanks.

    Reply
  7. Kayleigh says

    February 17, 2022 at 2:55 pm

    5 stars
    Absolutely amazing recipe, my favourite combination and a healthy version, what more can you want in life and they really do taste incredible xXx

    Reply
  8. Angelica says

    February 27, 2022 at 11:16 am

    5 stars
    So delicious. Perfect for me when I’m craving muffins but they have to be gluten free 😋

    Reply
  9. emily says

    August 20, 2022 at 12:59 pm

    5 stars
    LOVE THESE !!! Perfect for meal prep.

    Reply
  10. Melaney says

    November 20, 2022 at 10:47 pm

    5 stars
    Very delicious, not overly sweet. Love them!!!

    Reply
  11. Aileen Wolfe Goldhirsh says

    June 19, 2024 at 9:45 am

    5 stars
    This recipe was so easy and delicious too. I had all the ingredients and was able to make them quite quickly. It was difficult not eating them all myself. I will freeze some and keep the rest in the fridge. Thanks for sharing.

    Reply
  12. Amy says

    February 25, 2025 at 3:52 pm

    5 stars
    Love all these recipes but this one is amazing.

    Reply

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I'm a foodie, recipe developer, and blogger based in Austin, Texas. I started this blog to show that healthy eating doesn’t have to be boring. Here you’ll find tons of easy, delicious recipes made with everyday ingredients — all lighter takes on your favorite foods. Have a question or want to connect? I’d love to hear from you!

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