Creamy blueberry oatmeal with a buttery streusel topping inspired by the bakery favorite.
This Blueberry Buckle Baked Oatmeal combines creamy oats with juicy blueberries and a buttery oat streusel topping. Sweetened with maple syrup and brightened with lemon zest, it’s a cozy, wholesome breakfast where blueberry buckle meets baked oatmeal.

Why you’ll love this Blueberry Buckle Baked Oatmeal:
Creamy and satisfying. Creamy blueberry oats pair perfectly with the crunchy buttery oat streusel topping.
A wholesome breakfast. Made with protein-rich greek yogurt, whole grain oats, eggs, and blueberries. This baked oatmeal is naturally sweetened with maple syrup for a satisfying breakfast that feels like a bakery treat!
Bright and flavorful. A touch of lemon zest adds a fresh pop of flavor that pairs perfectly with the sweet blueberries and cinnamon.

Ingredient Breakdown + Recipe Modifications:
- Milk: Provides moisture and creates a creamy baked oatmeal. I use 2% milk, but any milk of choice can work.
- Greek yogurt: Adds protein, creaminess, and moisture while giving the oatmeal a creamy custardy texture.
- Eggs: Help bind the oatmeal together.
- Maple syrup: Naturally sweetens the oatmeal and streusel while adding a subtle maple flavor. Honey can be substituted if preferred.
- Vanilla extract: Enhances the sweetness.
- Lemon zest: Adds a bright, fresh flavor that pairs well with the blueberries.
- Old-fashioned rolled oats: Creates the hearty, chewy texture of baked oatmeal. I recommend old-fashioned oats rather than quick oats for the best texture.
- Cinnamon: Adds warm, cozy flavor that complements the blueberries and buttery streusel.
- Baking powder: Gives the oatmeal a little lift.
- Blueberries: Add juicy bursts of sweetness and a fresh, fruity flavor throughout the oatmeal. Fresh or frozen blueberries both work well.
- Oat flour: Helps create a tender, cohesive streusel topping. You can make your own by blending old-fashioned oats into a fine flour.
- Butter: Adds richness and helps the streusel bake up golden and crumbly. Melted coconut oil can be used instead if preferred.
- Salt: Balances the sweetness and enhances the flavors of the blueberries, cinnamon, and buttery streusel.

How to make Blueberry Buckle Baked Oatmeal:
- Preheat oven to 350℉. Line an 8×8″ baking pan with parchment paper.
- In a medium mixing bowl, combine all streusel ingredients until a crumbly cohesive mixture forms.
- In a large mixing bowl, whisk together milk, yogurt, eggs, maple syrup, vanilla, and lemon zest. Add oats, cinnamon, baking powder, and salt. Stir well to combine. Fold in blueberries.
- Pour oatmeal into prepared baking dish. Sprinkle streusel evenly over top of the oatmeal. Bake oatmeal for 25-30 minutes until center is set and edges become light golden and pull away from the sides. Cool for 8-10 minutes before slicing and serving.
Pro Tips:
- Don’t skip the yogurt! Not only does it provide a boost of protein, but it creates a delicious creamy custardy texture.
- Let it cool before serving. The baked oatmeal will continue to set as it cools, so letting it rest for 8-10 minutes after baking gives you the best texture.


Frequently asked questions:
Can I use frozen blueberries?
Yes! Frozen blueberries work just as well as fresh. Add them straight to the oatmeal without thawing to prevent excess moisture.
Can I make this baked oatmeal ahead of time?
Absolutely. This is a great make-ahead breakfast. Bake it the night before, let it cool completely, then cover and refrigerate until ready to serve.
Can I use a different milk?
Yes. Dairy or non-dairy milk can be used in an equal amount.
Can I add protein powder?
Definitely! I’d recommend a vanilla protein powder. You might need to add a bit more milk depending on the type of protein powder you use.
Storage Instructions:
Refrigerator: Let the baked oatmeal cool completely, then cover tightly or transfer to an airtight container. Refrigerate for up to 5 days.
Freezer: Cut into individual portions and wrap each piece tightly before placing in a freezer-safe container or bag. Freeze for up to 3 months. Thaw overnight in the refrigerator before reheating.
Reheating Instructions:
Place an individual serving on a microwave-safe plate and heat until warmed through. For multiple servings, cover with foil and warm at 300F in the oven for 15-20 minutes until heated through.
If you loved this Blueberry Buckle Baked Oatmeal, you’ll also enjoy these other baked oatmeal recipes:
- Caramelized Peach Baked Oatmeal
- Dark Chocolate Pistachio Baked Oatmeal
- Pear and Chai Baked Oatmeal
- Apple Pie Baked Oatmeal
Also, if you make this recipe and decide to share it on Facebook or Instagram don’t forget to tag me @healthienut + #healthienut! I love seeing your mouthwatering recreations!
Blueberry Buckle Baked Oatmeal
Ingredients
Streusel Topping
- ½ cup old-fashioned rolled oats
- ½ cup oat flour
- 4 tbsp unsalted butter, melted
- 1 tbsp maple syrup
- ½ tsp ground cinnamon
- ¼ tsp salt
Oatmeal
- 1 ¾ cup milk
- ½ cup greek yogurt
- 2 large eggs
- ¼ cup maple syrup
- 1 tsp vanilla extract
- 1 tsp lemon zest
- 2 ½ cups old-fashioned rolled oats
- ½ tsp ground cinnamon
- ½ tsp baking powder
- ¼ tsp salt
- 1 cup fresh or frozen blueberries + more for topping
Instructions
- Preheat oven to 350℉. Line an 8×8" baking pan with parchment paper.
- In a medium mixing bowl, combine all streusel ingredients until a crumbly cohesive mixture forms.
- In a large mixing bowl, whisk together milk, yogurt, eggs, maple syrup, vanilla, and lemon zest. Add oats, cinnamon, baking powder, and salt. Stir well to combine. Fold in blueberries.
- Pour oatmeal into prepared baking dish. Sprinkle streusel evenly over top of the oatmeal. Bake oatmeal for 25-30 minutes until center is set and edges become light golden and pull away from the sides. Cool for 8-10 minutes before slicing and serving.
