These Blueberry Oatmeal Muffins are bursting with flavours! They are soft and fluffy muffins with juicy blueberries, tangy lemon flavour, and hearty oats in every bite.

A simple muffin recipe to use as a snack, or meal prep for breakfast. These muffins are wholesome and delicious.
The batter gets mixed together in a few simple steps with no electric mixer required, scooped, and baked to perfection.
I’m so excited to share this recipe so let’s begin!
For more blueberry recipes, try Blueberry Breakfast Cake, Bakery Style Lemon Blueberry Muffins, and Peach Blueberry Cake.
Why this recipe works
- Lemon and Blueberry – Light and fruity flavours with tangy lemon bursting in every bite!
- Easy to make – Comes together with just a few simple steps! No wait time either.
- Soft and fluffy – These muffins rise beautifully in the oven!
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!
- Buttermilk - You can also use full fat kefir or plain yogurt. To make buttermilk, stir 1 cup of milk with 1 tbsp of lemon juice or vinegar. Allow to sit on your counter for at least 10 minutes before using.
- Blueberries – Make sure to use fresh, and not frozen. Frozen berries hold a lot more liquid, therefore making the batter runnier and affecting the entire bake. If using frozen, do not thaw them!
- Flour – All-purpose flour is used in this recipe.
- Eggs – Make sure they’re at room temperature before beginning.
- Oil – I used a flavourless oil. You can also use melted and cooled butter.
- Lemon – Lemon zest is used in this recipe.
Step by step instructions
Here is how to make and bake these Blueberry Oatmeal Muffins. You will need two 12 muffin tins, tulip muffin liners, 2 mixing bowls, a spatula, and a whisk.
Step 1 – Prep. Preheat the oven to 375°F. This recipe makes 15 regular-sized muffins or 8 tulip liner muffins. I made mine in tulip liners. Line the muffin tins with your liners and set aside. If you need a recommendation, this is my favourite tin.
Step 2 – Mix dry ingredients. In a medium-sized bowl, add in all-purpose flour, rolled oats, baking soda, baking powder, cornstarch, and salt. Mix together and set aside.
Step 3 – Mix lemon zest and white sugar. In a large bowl, add white sugar and lemon zest. Using your fingers, combine them to release all of the lemon oils and fragrances. Do this for 2 minutes.
Step 4 – Whisk wet ingredients. Into the same bowl, add oil, eggs, vanilla, and buttermilk. Whisk until well combined.
Step 5 – Add in dry ingredients. Pour the dry ingredients into the wet and using a spatula, gently fold to create a soft muffin batter.
Step 6 – Add blueberries. Wash the blueberries and don't dry them completely. Then gently toss the blueberries in 1-2 tsps of flour before adding them into the mixing bowl. Tossing them while still a bit wet will help the flour stick better to them! Then add into the bowl and mix in a few times.
Step 7 – Scoop. Evenly divide the batter between your liners, they should be almost or all the way full. Using a cookie scooper helps big time to minimize the mess. Add extra blueberries on top and sprinkle some white sugar.
Step 8 – Bake. Bake the muffins at 375°F for 20-25 minutes. If using regular liners, the muffins will bake for 15-20 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 a few days, or in the refrigerator in an airtight container for up to 1 week!
Expert Baking Tips
Here are a few expert baking tips from my kitchen to yours
- 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.
- Use fresh, not frozen. Make sure to use fresh blueberries! If using frozen berries, do not thaw them and toss them in 1 tsp of flour to help absorb any liquid and prevent sinking.
FAQ
Do I have to add blueberries?
No! Feel free to leave them out or add something else in.
Can I use regular liners?
Yes. This recipe makes 15-16 regular-sized muffins. Fill your regular liners up to almost the top and bake for 20-25 minutes at the same temperature.
More blueberry muffin recipes
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 Oatmeal Muffins
Ingredients
- 1 1/2 cups all-purpose flour plus more for dusting
- 1 cup rolled oats also known as large flake oats
- 1 tsp baking soda
- 1 1/2 tsp baking powder
- 1 tbsp cornstarch
- 1/4 tsp salt
- 3/4 cups white sugar
- 1 tbsp vanilla
- 1/2 cup oil
- 1 cup buttermilk* room temperature*
- 2 eggs room temperature
- Lemon zest from 1 large lemon
- 1 cup fresh blueberries*
Instructions
- Preheat the oven to 375°F/190℃. This recipe makes 15 regular-sized muffins and 8 tulip liner muffins. Line the muffin tins with your liners and set aside.
- In a medium-sized bowl, add in flour, rolled oats, baking soda, baking powder, cornstarch, and salt. Mix together and set aside.1 1/2 cups all-purpose flour, 1 cup rolled oats, 1 tsp baking soda, 1 1/2 tsp baking powder, 1 tbsp cornstarch, 1/4 tsp salt
- In a large bowl, add white sugar and lemon zest. Using your fingers, combine them to release all of the lemon oils and fragrances. Do this for 2 minutes.3/4 cups white sugar, Lemon zest from 1 large lemon
- Into the same bowl, add oil, eggs, vanilla, and buttermilk. Whisk until well combined.1/2 cup oil, 1 cup buttermilk*, 2 eggs, 1 tbsp vanilla
- Add in dry ingredients. Pour the dry ingredients into the wet and using a spatula, gently fold to create a soft muffin batter.
- Gently toss the blueberries in 1-2 tsps of flour before adding them into the mixing bowl. This will help absorb any liquid they may have from washing and prevent from sinking. Then add into the bowl and mix in a few times.1 cup fresh blueberries*
- Evenly divide the batter between your liners, they should be almost or all the way full. Using a cookie scooper helps big time to minimize the mess. Add extra blueberries on top and sprinkle some white sugar.
- Bake the muffins at 375°F for 23-28 minutes. If using regular liners, the muffins will bake for 20-25 minutes. The muffins are ready when a toothpick inserted comes out dry with no wet batter.
- These blueberry muffins stay fresh covered at room temperature for a few days, or in the refrigerator in an airtight container for up to 1 week!
Momof4Boys says
What temp/minutes would I bake this if I wanted to do a loaf pan version instead of muffins?
Ania says
Hi! I've never tried this so I can't guarantee it will work since the batter is quite runny. I would recommend reducing the buttermilk to 3/4 cups and reduce the baking powder to 1/2 tsp. I would bake it at 350F for 40-45 minutes or until a toothpick inserted comes out clean! If you try it, please let me know how it goes. Good luck 🙂
Pamela says
This recipe is UNREADABLE with all the Ads, Pop-ups and Interruptions!!! PLEASE FIX IT!!! It’s SO ANNOYING!!!
D says
Hi,
The recipe looks wow, I was wondering if one could bake it sugarfree?
Thanks for the recipe.
Rgds
D
Jamie says
These muffins were so delicious and the texture was unlike any store bought muffin.
Ania says
Hi Jamie! I'm SO glad to hear this, you made my day! Enjoy the muffins:)
Vivian says
Can I use quick.oats for this recipe?
Ania says
Hi Vivian. Quick oats are a lot smaller than rolled oats so I don't believe they would work as well/the texture would be different. You may try it, but I can't guarantee results as I haven't made them myself using quick oats. Let me know if it works if you do try it 🙂 Enjoy!
Courtney Hoyt says
Hi my name is courtney i dont have any muffin liners could i bake them without the liners as long as i spray the muffin pan for regular liners it would bake for 350
Ania says
Hi Courtney! I haven't tried this, but I think you can make these without muffin liners if you grease the pan very well. Enjoy! 🙂
Thelma Ross says
Can u in use almond flower in place of all purpose? If so would the measurements stay the same?
Ania says
Hi Thelma, I have never tried baking with almond flour instead so I don't know how that would work.
Kathy says
Could I omit the lemon zest? Not a fan of blueberry with lemon
Ania says
Yes! You can leave it out 🙂
Laurie Sales says
Can I use self rising flour instead of all
Purpose. Eliminating the baking soda and baking powder?
Ania says
Hi Laurie! I haven't tried using self rising flour. It should work, but the texture might be slightly different. Enjoy! 🙂