These bakery style blueberry muffins are just like the ones you eat in a bakery! They are fluffy and soft muffins. They are studded with gorgeous blueberries throughout and topped with a buttery sugar streusel!

Is there anything better than a fresh batch of jumbo muffins? Probably not. I could seriously eat these for breakfast every day.
I’m super excited because this is the first jumbo muffin recipe to make its way onto my blog! These babies are baked in jumbo muffin tins and baked extra large!
The muffins have a buttery sugar streusel sprinkled on top before baking. I like to be extra generous with the amount of streusel I put on top of my muffins. As it bakes up, some of it melts, and pools over the sides and crisps up. DROOL.
I am quite literally obsessed. If you love blueberries, you will love this recipe!
Why this recipe works
- Breakfast – Easy breakfast or snack idea on the go.
- Jumbo - These are extra big muffins! Go big or go home am I right!?
- Easy to make – Super simple recipe that comes together in under 20 minutes.
- Blueberries- These muffins are studded with juicy fresh blueberries throughout.
- Fluffy & moist – The blueberry muffins are very soft and pillowy!

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!
Butter – Unsalted butter works best for baking. This is going to be melted.
Buttermilk – Buttermilk is an important ingredient in these muffins. The acid in the buttermilk works with the leavening agents to give a fluffier crumb and more of a rise. 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.
Cornstarch – Helps to create that tender crumb.
Oil – I used a flavourless oil. Makes the muffins more moist.

Step by step instructions
Here is how to make and bake these Bakery Style Blueberry Muffins. You will need a jumbo muffin liner, jumbo liners, 2 large mixing bowls, a spatula, and a whisk.
Step 1 – Prep. Line the jumbo muffin tin with 8 liners and set aside. If you need a recommendation, this is my favourite tin.
Step 2 – Make the streusel. In a medium sized bowl, add flour, sugar, and cold butter. Using your hands, mix this until crumbly and combined. Set aside while you make the muffin batter.

Step 3 – Whisk wet ingredients. In a large bowl, whisk melted and cooled butter, egg, egg yolk, oil, white sugar, buttermilk, and vanilla. Whisk until well combined.

Step 4 – Add in dry ingredients. Toss in flour, salt, cornstarch, baking powder, and baking soda. Using a spatula, mix until just completely combined.

Step 5 – Add blueberries. 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. Then add into the bowl and mix in a few times.

Step 6 – Scoop. Evenly divide your muffin batter between your liners. Make sure they are about 3/4s of the way full max, no more or else they will overflow. This recipe made 8 jumbo muffins for me, but depending on the size of your jumbo pan it can make more or less. Using a cookie scooper helps big time to minimize the mess. Sprinkle streusel on top.


Step 7 – Bake. Bake the muffins at 425°F for 5 minutes, then turn down to 375°F and bake for an additional 20-25 minutes. The muffins are ready when they bounce back at touch or a toothpick inserted comes out clean.
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!
FAQ
Do I have to add blueberries?
No! Feel free to leave them out or add something else in (like some walnuts or chocolate chips!)
Why do you do 2 temperatures?
The first temperature is a short-term high temperature. The goal here is that the heat is so hot it activates the leavening agents so the muffins grow tall quickly within the first 5 minutes and you get that muffin dome. Then, once you lower it down, it continues to bake inside.
Can I make these in a regular muffin tin?
Absolutely! This recipe makes 12 regular sized muffins. Feel free to bake them in a regular tin at 425°F for 5 minutes and then 375°F for 12-15 minutes.
I have extra streusel leftover! What do I do?
Streusel actually freezes very well. Take any leftovers you may have and place it in a ziplock freezer-safe bag and freeze it! Next time you're baking, you've got it right on hand. You also don't need to thaw it out before using.

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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!

Jumbo Blueberry Muffins
Ingredients
For the streusel
- 3/4 cup all-purpose flour
- 1/3 cup white sugar
- 6 tbsp butter cold
For the muffins
- 1/2 cup butter melted and cooled
- 3 tbsp oil
- 1 egg room temperature
- 1 egg yolk room temperature
- 1 cup buttermilk* room temperature
- 1 tbsp vanilla
- 1 cup white sugar
- 2 1/2 cups all-purpose flour
- 3 tsp baking powder
- 1 tsp baking soda
- 1/2 tsp salt
- 1 tbsp cornstarch
- 1 1/2 cups fresh blueberries
Instructions
- Preheat the oven to 425℉. Line a jumbo muffin tray with 8 liners and set aside. Melt the butter and prepare to measure the rest of your ingredients as it cools.
- In a small bowl, make the streusel. Combine flour, white sugar, and cold cut up butter. Using your hands, mix it together until combined into a crumbly, streusel mixture. Set aside while you make the muffin batter.3/4 cup all-purpose flour, 1/3 cup white sugar, 6 tbsp butter
- In a large bowl, whisk melted and cooled butter, white sugar, egg, egg yolk, buttermilk, oil, and vanilla. Whisk until combined.1/2 cup butter, 3 tbsp oil, 1 egg, 1 egg yolk, 1 cup buttermilk*, 1 tbsp vanilla, 1 cup white sugar
- Add in flour, salt, cornstarch, baking soda, and baking powder. Using a spatula, gently fold until just combined. It's important not to over mix with muffins.2 1/2 cups all-purpose flour, 3 tsp baking powder, 1 tsp baking soda, 1/2 tsp salt, 1 tbsp cornstarch
- In the bowl with the blueberries, add 1-2 tsps of flour and gently toss around until evenly coated. The light coating of flour will absorb any extra liquid it may have before adding it into the mixing bowl.1 1/2 cups fresh blueberries
- Add the blueberries and mix in a few times.
- Evenly divide your muffin batter between your liners. Make sure they are about 3/4s of the way full max, no more or else they will overflow. This recipe made 8 jumbo muffins for me, but depending on the size of your jumbo pan it can make more or less. Sprinkle streusel on top.
- Bake the muffins at 425°F for 5 minutes, then turn down to 375°F and bake for an additional 20-25 minutes. The muffins are ready when they bounce back at touch or a toothpick inserted comes out clean.
- These muffins are best eaten fresh. They stay fresh covered at room temperature for a few days, or in the refrigerator in an airtight container for up to 1 week!
Verna E Ulrich says
These muffins are amazing! Thank you so much for sharing your recipe! I've made a large batch today for teachers appreciation breakfast.
Ania says
Hey Verna! So kind of you to bake them for the teachers breakfast. I’m glad they turned out delicious! Thanks for sharing!
Bianca says
These muffins are so delicious . I made them for long weekend family gathering and everyone loved them , thanks for sharing
Ania says
Hi Bianca! I’m so glad these muffins were a hit at your family gathering - they always are at mine too! Thanks for sharing, and have a wonderful weekend! 🙂
Diane Marie says
I just made these. They are delicious. I chose to do 12 count & they turned out perfect. Thanks for a great recipe
Ania says
Hi Diane! Thanks for the sweet comment! I am so glad to hear you enjoyed these blueberry muffins. 😊
Denise Schneider says
I'm baking these muffins now and they are running over in my big six count muffin pan. What did I do wrong?I also have leftover stressed. Does it make a difference if I gas stove instead of an electric? I hope don't burn them.
Ania says
Hi Denise! How did the muffins turn out? If you have leftover streusel, you can place it into a ziplock bag and freeze it. Next time you need to use it, just sprinkle it from frozen onto your baked goods. 🙂
Christina says
This is another one of my go-to recipes from this page! so delicious.
Thank you!
Ania says
Hi Christina!! Thank you so much for your sweet comment - happy to hear it's a classic for you!
Jesse says
amazing recipe, only thing i added is lemon zest which gave these a really cool tangy twist
Ania says
Hey Jesse! Really happy to hear you liked the recipe. The combo of blueberries with lemon zest is soo good, I bet it tasted amazing. Thanks for sharing 🙂
Patty says
Super yum!! I did have to bake mine for about 30-35 minutes at 375°, after the initial 5 minutes at 425°. But it was worth the wait!
Ania says
Hi Patty! So glad the muffins were yummy for you - they're one of my favourites. Thanks for letting me know about the extended time it took, every oven does differ but I'm glad to hear it worked out for you in the end. 🙂 Have a great day!
Patty says
Oh!! I just made again this morning but I didn’t have any buttermilk or milk to make buttermilk (which I did last time with the vinegar). All I had was low fat kefir with vanilla. It worked out well!
Ania says
Hi Patty! I'm happy to hear that the muffins turned out well with the low fat vanilla kefir. Thanks for letting me know!! 🙂