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    Blueberry Banana Oatmeal Muffins

    August 28, 2025 by Ania · This post may contain affiliate links · Leave a Comment

    Sweeten up your mornings with these Blueberry Banana Oatmeal Muffins! They are wholesome and delicious muffins packed full of so much goodness. Every bite is full of sweet bananas, oats, and sweet blueberries.

    Jump to Recipe - Pin Recipe

    Whether you're headed out the door or you're looking for a post-dinner snack, these muffins are a great treat for any time of the day!

    These muffins are the perfect balance between healthy and satisfying. If you have browning bananas on your counter, you have to give them a try!

    Step by step instructions

    Here is how to make and bake these Blueberry Banana Oatmeal Muffins. You will need a 12 muffin tin, muffin liners, 3 mixing bowls, a spatula, and a whisk.

    Step 1 - Prep. Preheat the oven to 350°F. Line the muffin tin with 12 liners and set aside. Melt the butter and allow it to cool as you prep the rest of the ingredients.

    Step 2 - Mix dry ingredients. In a medium-sized bowl, add in the dry ingredients; flour, oats, baking soda, baking powder, cinnamon, cornstarch, and salt. Stir to combine and set aside.

    Step 3 - Whisk sugar and eggs. In a large bowl, add in brown sugar and eggs. Whisk for 2-3 minutes vigorously until well combined.

    Step 4 - Add in wet ingredients. Add in the mashed bananas and oil. Continue to whisk together. The mixture may appear lumpy, but that is normal due to the bananas.

    Step 5 - Add in sour cream and vanilla. Whisk in the sour cream and vanilla.

    Step 6 - Add in dry ingredients. Mix together with a spatula gently until a soft muffin batter forms.

    Step 7 - Mix in berries. Add the blueberries (gently tossed in flour before-hand) and mix just until they are combined and no flour streaks appear. Do not over-mix.

    Step 8 - Scoop and bake. Scoop the batter between the liners evenly. Bake for 25-35 minutes or until a toothpick inserted comes out clean.

    Allow to cool, and enjoy! These blueberry banana oatmeal muffins are such a treat.

    FAQ

    How do I store these muffins?

    These muffins are best enjoyed fresh and stay good on the counter for 3 days. You may store them in an airtight container in the fridge for up to 1 week.

    You may also freeze the muffins in a Ziplock bag for up to 1 month, and thaw them at room temperature.

    Do I have to add bananas?

    Yes. This is a banana-forward recipe. Check out Blueberry Oatmeal Muffins if you don't want bananas.

    Do I have to add blueberries?

    No. The blueberries are optional.

    PS : If you enjoyed this recipe, please make sure to leave a STAR REVIEW down below! I'd love to stay connected on Instagram @taffeybakery! To get more recipes follow me on TikTok @taffeybakery!

    Blueberry Banana Oatmeal Muffins

    Ania
    These are simple Blueberry Banana Oatmeal Muffins that are exploding in so much goodness. If you have browning bananas on your counter, you have to give them a try! They are full of juicy blueberries, hearty oats, and sweet bananas in every bite.
    5 from 1 vote
    Print Recipe Pin Recipe
    Prep Time 15 minutes mins
    Cook Time 25 minutes mins
    Course Breakfast, Dessert, Snack
    Cuisine American
    Servings 12 muffins
    Calories 270 kcal
    Need metric measurements?Use the buttons below to click between US cups and Metric grams!
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    Ingredients
     
     

    • 1 1/2 cups all-purpose flour + 1 tbsp for dusting
    • 1 1/4 cups oats
    • 1 1/2 tsps baking powder
    • 1 tsp baking soda
    • 3/4 tsps cinnamon
    • 1/4 tsp salt
    • 2 tsps cornstarch
    • 3/4 cups dark brown sugar
    • 2 eggs room temperature
    • 1 cup bananas mashed, about 2 large or 3 medium bananas
    • 1 tbsp vanilla
    • 1/2 cup oil
    • 1/2 cup sour cream room temperature
    • 1 1/2 cups fresh blueberries

    Instructions
     

    • Preheat the oven to 375℉/190℃. Line a muffin tin with liners and set aside. Mash the bananas and set aside.
    • In a bowl, add the dry ingredients. Mix together and set aside.
      1 1/2 cups all-purpose flour, 1 1/4 cups oats, 1 1/2 tsps baking powder, 1 tsp baking soda, 3/4 tsps cinnamon, 2 tsps cornstarch, 1/4 tsp salt
    • In a large bowl, add the sugar and eggs. Whisk together for 2-3 minutes vigorously until well combined.
      3/4 cups dark brown sugar, 2 eggs
    • Add in the oil and bananas. Continue whisking. It may be lumpy from the bananas and that is normal.
      1 cup bananas, 1/2 cup oil
    • Add in the sour cream and vanilla. Whisk together.
      1 tbsp vanilla, 1/2 cup sour cream
    • Add in the dry ingredients. With a spatula, gently fold just until a soft muffin batter forms. Do not over-mix!
    • Into the bowl with the blueberries, add in 1 tbsp of flour. Dust the berries in the flour before adding them into the muffin batter. Then, add them in a gently mix in a few times - do not over-mix!
      1 1/2 cups fresh blueberries
    • Scoop the batter evenly between the liners. If using regular liners, fill them all the way. If using tulip liners, fill them about halfway.
    • Bake the muffins for 25-35 minutes. They will be ready when a toothpick inserted in the middle comes out clean.
    • Allow to cool, and enjoy!

    Equipment

    Muffin Tin
    Tulip Liners
    Cookie Scooper
    Gram Scale
    Whisk
    Spatula

    Nutrition

    Serving: 1muffinCalories: 270kcalCarbohydrates: 35gProtein: 4gFat: 13gSaturated Fat: 2gPolyunsaturated Fat: 3gMonounsaturated Fat: 7gTrans Fat: 0.04gCholesterol: 33mgSodium: 163mgPotassium: 135mgFiber: 2gSugar: 15gVitamin A: 108IUVitamin C: 1mgCalcium: 63mgIron: 1mg
    Keyword blueberry banana bread muffins, blueberry banana oatmeal muffins
    Tried this recipe?Let us know how it was!

    CommentsCancel reply

    Hi, I'm Ania!

    Welcome to Taffey Bakery! Here I share a wide variety of desserts you can create with simple, everyday ingredients. Let’s get to baking!

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