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Blueberry Oat Muffins

These blueberry oat muffins are naturally sweetened with only fruit and maple syrup. A sugar-free blueberry icing is the perfect finishing touch!

Glazed blueberry muffin on cooling rack

Blueberry muffins are always a treat, but this recipe takes them to the next level—made with whole grain flours, naturally sweetened, and topped with a beautiful blueberry icing. These muffins are soft, tender, and bursting with juicy blueberries in every bite. They're perfect for breakfast, snacking, or any time you’re craving a homemade blueberry muffin with a little something extra!

What Makes These Blueberry Oat Muffins So Good?

  • Perfect blend of flours: Instead of all-purpose flour, these muffins use oat flour, quinoa flakes, and almond flour, giving them a hearty texture while still staying soft and fluffy.
  • Naturally sweetened: Ripe bananas, applesauce, and a touch of maple syrup bring just the right amount of sweetness, letting the fresh blueberries shine.
  • Moist and tender without oil: Traditional muffins rely on oil or butter, but this recipe skips both while still delivering a perfectly moist and flavorful bite.
  • Finished with blueberry icing: A drizzle of naturally colored blueberry icing adds just the right amount of sweetness and a gorgeous pop of color.
Ingredients for Blueberry Oat Muffins with Blueberry Icing.

What You’ll Need

Here are some notes about the ingredients in this recipe. Scroll down to the recipe card for a printable list.

  • Flax egg – If you’ve never made one before, you just combine a tablespoon of flaxseed meal with 3 tablespoons of water.
  • Mashed banana – Make sure you use a ripe banana, otherwise it won't add enough sweetness to your muffins.
  • Applesauce – Be sure to use an unsweetened variety so you don’t end up sneaking sugar back into your muffins!
  • Maple syrup – You could also use an equal amount of agave or honey.
  • Non-dairy milk – Regular milk also works, if that is what you have on hand.
  • Oat flour – You can purchase this or make your own by grinding oats in a high-powered blender or food processor.
  • Quinoa flakes – Quinoa flakes are pressed quinoa grains, similar in texture to instant oats. They provide a soft, tender texture while adding protein and fiber.
  • Almond flour – Almond flour is naturally gluten-free and adds moisture, richness, and a slightly nutty flavor.
  • Baking powder
  • Cinnamon
  • Sea salt – Kosher salt also works.
  • Fresh blueberries – Frozen also works, but make sure they’re frozen when you add them to the batter. If they’ve thawed, they’ll turn your batter purple!

For the glaze:

  • Coconut butter – This isn’t the same as coconut oil! It’s rich, creamy, just a touch sweet, and full of tropical flavor.
  • Blueberry powder – If you can’t find this, you can buy freeze-dried blueberries and pulse them in your food processor until they form a powder.

Quick Tips

  • Dry the blueberries well. If they still have droplets of water clinging to them when you add them to the batter, they’ll introduce water into it and affect the texture and baking time.
  • Don’t switch up the flours. I developed this recipe using these exact flours; swapping them for other gluten-free flours will yield different results.
Blueberry oat muffins on cooling rack

How to Make Blueberry Oat Muffins

You’re just 30 minutes away from sweet, moist, perfect blueberry muffins! Here’s a quick look at how to make them:

  • Prepare. Preheat your oven to 350ºF and either line a muffin tin with paper liners or grease it with coconut oil.
Two photos showing wet muffin ingredients in mixing bowl
  • Mix the wet ingredients. Beat all of the the wet ingredients in a large mixing bowl.
Two photos showing dry muffin ingredients in mixing bowl
  • Mix the dry ingredients. In another bowl, whisk together the dry ingredients.
Two photos showing process of mixing muffin batter in mixing bowl
  • Combine. Pour the dry ingredients into the wet ingredients and stir until they're incorporated. Fold in the blueberries.
Two photos of blueberry muffins in tin; one unbaked, one baked
  • Bake. Divide the batter between the muffin cups and place the muffin tin on the center rack of the oven. Bake for 20 to 23 minutes, or until a cake tester inserted into the center comes out clean.
  • Cool. Let the muffins cool in the pan for 5 minutes, then transfer them to a wire rack to finish cooling.
  • Glaze. Melt the coconut butter over a double-boiler, then whisk in the blueberry powder. Drizzle the mixture over the cooled muffins and sprinkle them with additional blueberry powder, if desired.
Rustic muffin tin with 4 cups filled with blueberry muffins and 2 cups filled with blueberries

Why Do My Muffins Come Out Flat?

If your muffins are flat flat, with no dome at all, there are a few potential causes.

  • Under mixing: One possibility is that you're not mixing the ingredients properly and not getting enough air into the batter; this is less of a factor when you’re not using eggs. 
  • Inaccurate measuring or expired ingredients: Another possibility is that you're using too much liquid or not enough baking powder or soda, which is what makes muffins rise. Your baking powder or soda could also be past its prime and not working like it should. 
  • Oven temp: It’s also possible that your oven isn't hot enough, making your muffins under-baked. If you have this problem often, it may be worth investing in a thermometer to pop into your oven to check the temperature.
Overhead view of glazed blueberry muffins in muffin tin

How to Store

  • Counter: Place these healthy blueberry muffins in an airtight container and store them at room temperature for 3 to 4 days. 
  • Can I freeze them? Yes, you can freeze these blueberry muffins for up to 3 months. Place them in a freezer bag or airtight container; they can be warmed up in the microwave or left on the countertop at room temperature to thaw.

Blueberry Oat Muffins

4 from 2 votes
These easy blueberry oat muffins are tender, sweet, and delicious! And they're naturally sweetened using only fruit and maple syrup.
author: Alyssa
yield: 9 muffins
Glazed blueberry muffin on cooling rack
Prep: 15 minutes
Cook: 25 minutes
Total: 40 minutes

Ingredients
  

for the muffins:

for the glaze:

Instructions
 

  • Preheat the oven to 350ºF. Line a muffin tin with paper liners (or grease with coconut oil) and set aside.
  • Beat together wet ingredients in a large mixing bowl. Add dry (minus the blueberries) and stir together until incorporated. Fold in the blueberries.
  • Divide batter evenly between the muffin cups (this recipe makes about 9 – 10 muffins). Bake on the center rack for 20 – 23 minutes until a cake tester inserted into the center comes out clean.
  • Allow muffins to cool in the pan for 5 minutes then transfer to a wire rack and cool completely.
  • Once cooled, make the glaze. Melt the coconut butter over a double boiler until it's smooth and runny. Whisk in blueberry powder and drizzle over muffins. Sprinkle each with a touch more blueberry powder if desired and enjoy!

Video

Notes

* if using bagged oat flour, use just 1 cup
To store: Place these healthy blueberry muffins in an airtight container and store them at room temperature for 3 to 4 days, or freeze them for up to 3 months. Frozen muffins can be warmed up in the microwave or left on the countertop at room temperature to thaw.

Nutrition

Serving: 1muffin | Calories: 179kcal | Carbohydrates: 29g | Protein: 4g | Fat: 5g | Sodium: 79mg | Potassium: 243mg | Fiber: 3g | Sugar: 9g | Vitamin A: 15IU | Vitamin C: 2.3mg | Calcium: 84mg | Iron: 1.4mg
cuisine: American
course: Baked Goods

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