Overnight Blueberry Baked Oatmeal Crisp
Overnight Blueberry Baked Oatmeal Crisp is overnight oats baked with blueberries and topped streusel topping. It’s fluffy, delicious and the perfect make ahead breakfast or brunch!
You all know I love my oatmeal because I’ve told you so time and time again. I have lots of baked oatmeal recipes here on the blog already, but this overnight blueberry baked oatmeal takes the cake.
This baked oatmeal recipe is a cross between overnight oats and baked oatmeal.
It’s the best of both worlds. 🙂
If you’re not familiar with overnight oats, they’re simply rolled oats soaked in liquid overnight until softened. The oats absorb the liquid, and they’re ready to eat in the morning with your favorite toppings.
See my blueberry overnight oats to learn how to make them!
Overnight Baked Oatmeal
I’d never tried using overnight oats in baked oatmeal until I got the idea to top it with streusel for this recipe.
Why on earth would anybody want to top baked oatmeal with a crumble that includes even more oatmeal?
Well, I told you I love my oatmeal. 🙂
The idea to top baked oatmeal with streusel came to me months ago after I made a blueberry baked oatmeal. I thought it would be fun to make it like a breakfast crisp, and tried it shortly thereafter.
It was absolutely amazing, and I knew I had to share it with you!
This overnight baked oatmeal recipe is the fluffiest baked oatmeal you’ll every eat. The overnight oats are responsible for the fluffier texture.
Most baked oatmeal is dense and dry, so this recipe will amaze you.
Recipe tips and substitutions
Substitute butter in place of the coconut oil here for the streusel if desired.
The oats are assembled the night before, and the crumble may also be made the day before and stored in the refrigerator.
Customize this recipe to suit your tastes using your favorite milk, sweetener and fruit.
More delicious breakfast and brunch recipes!
Blueberry banana baked oatmeal
Blueberry morning glory baked oatmeal
Strawberry rhubarb baked oatmeal
Overnight Blueberry Baked Oatmeal Crisp
Overnight Blueberry Baked Oatmeal Crisp is overnight oats baked with blueberries and topped streusel topping. It's the perfect make ahead breakfast or brunch!

Ingredients
For the oats:
- 2 cups old fashioned rolled oats
- 2 cups unsweetened almond milk (or milk of your choice)
- ⅓ cup pure maple syrup (or sweetener of your choice)
- 2 teaspoons ground cinnamon
- 1 beaten egg
- 1 teaspoon baking powder
- 1½ cups fresh or frozen blueberries (thawed if frozen)
For the streusel:
- 1 cup old fashioned rolled oats
- ½ cup all purpose flour (substitute with oat flour or almond meal if gluten intolerant)
- ½ cup brown sugar
- pinch of salt
- ½ cup coconut oil, melted*
Instructions
Prepare the oats:
- Place the oats, milk, sweetener, and cinnamon in a medium to large bowl and stir. Cover with plastic wrap and refrigerate over night. Do not add the egg or baking powder.
- The next morning, preheat the oven to 375 degrees and grease an 8x8" square baking dish. Set aside.
- Stir the beaten egg and baking powder into the oatmeal mixture until well combined, then gently stir in the blueberries. Pour the mixture into the prepared baking dish and spread evenly.
Prepare the streusel:
- Stir the oats, flour, and sugar and pinch of salt together in a medium bowl. Stir in the melted coconut oil until combined. Top the oatmeal evenly with the streusel.
- Bake for 30-40 minute on the middle rack of the oven until the majority of the liquid has been absorbed. If the streusel begins to brown too quickly during baking, cover loosely with foil for the remainder of the baking time.
- Remove from heat and cool on a wire rack for 10-15 minutes.
- Serve and enjoy!
Notes
- The streusel topping may also be made in advance and stored in an airtight container in the fridge until ready to use.
Nutrition Information:
Yield:
8Serving Size:
1Amount Per Serving: Calories: 526 Total Fat: 26g Saturated Fat: 13g Trans Fat: 0g Unsaturated Fat: 11g Cholesterol: 26mg Sodium: 113mg Carbohydrates: 64g Fiber: 7g Sugar: 23g Protein: 12g
Stop it. Oatmeal crisp for breakfast?! I’ve officially died and gone to heaven! Such a great idea. Pinned!
Thank you, Lindsey! This was definitely my dream breakfast.
Baked oatmeal is my favorite, Marcie! I love this blueberry version. Sounds like the perfect meal to whip up on the weekend or for during the week!
I love baked oatmeal, too, and this crisp version means regular will never be the same for me again! Haha. Thanks, Gayle!
A crisp for breakfast?? With blueberries?? Marcie I LOVE this! Definitely trying soon! Hope you are doing something fun the rest of the week and enjoy the time away!
I think this was the oatmeal of my dreams! haha And thanks — I had a blast in DC! 🙂
I love overnight oatmeal- so easy and makes for a tasty breakfast the next day!
It sure does! The crumble topping makes it suitable for a special brunch. 🙂
A breakfast oatmeal crisp sounds perfect for breakfast! Especially with blueberries! I want this for breakfast every morning! It looks and sounds amazing!! Hope you have a great week off 🙂
Thanks so much, Kelly, and I totally want it every morning, too! 🙂
I love baked oatmeal, especially blueberry! This crisp version sounds fantastic!
Thank you, Jen! It’s got to be my favorite oatmeal ever! 🙂
I’ve never made a baked oatmeal before, but when I do I will start with this recipe! It sounds so delicious Marcie, and just perfect for this week!
This was the most indulgent oatmeal I’ve ever had for sure. haha Thanks, Allie! 🙂
This looks wonderful! I’ll definitely be trying it. Pinning and I am going to share it to my Facebook page tomorrow morning!! Can’t wait to try it!
Thanks so much, Michelle, and I appreciate the FB share! 🙂
Perfect for any day of the week Marcie! I love this!
Thanks so much, Trish! 🙂
Sometimes my issue with overnight oats is that they’re too texture-flat and mushy, but I love the crisy top you’ve gotten with these oats 🙂
The oats are so creamy in here, but you’re so right — the crumble topping adds such a delicious texture! Thanks, Medha!
Love baked oatmeal. This looks fantastic Marcie, thanks for the idea of using coconut oil in crumble, I am doing that next time!
Thanks so much, Manali! The coconut oil made that crumble so much better than butter, too. 🙂
Marcie, this looks delicious. You have so many interesting flavor combos going on in here. I love that you used coconut oil and so much oatmeal! Yum!
Thank you, Rachel! 🙂
Aaah, I love this! I have oatmeal most mornings but always boringly microwaved and topped with frozen blueberries that hurt my teeth 😀 I need to try this!
I get bored with my run of the mill oatmeal, too, so this was an extra special treat! And these blueberries won’t hurt your teeth. haha Thanks, Nora! 🙂
Yes, yes, yes! Love crisp in any way I can get it!
Thanks, Ashley! 🙂
Baked oatmeal is my favorite way to eat oatmeal! I love the blueberries in this and that it’s overnight. That crumble on top is such a great idea!
Thanks, Danielle! This is officially my favorite baked oatmeal ever and it’s almost like dessert! 🙂
I’ve never made a overnight bake although I’ve wanted to for a long time. This looks really good, with the crisp with the coconut oil.
I hope you try it, Ash! It really is a fun way to eat oatmeal. 🙂
An oatmeal crisp for breakfast is such a fabulous idea! Love all the blueberries and coconut oil sounds like a great sub for butter. Can’t wait to try this!
Thank you, Christin! 🙂
I would probably stick with coconut oil in here as well. I bet it’s great in this beautiful crumble. Dleicious Marcie. I’m going to make on Sunday. 🙂
The coconut oil gave this crumble so much more flavor! Thanks, Kathy, and hope you had a wonderful Mother’s Day. 🙂
I adore overnight breakfasts! This looks amazing!
Thanks so much, Julie! 🙂
I would love this for breakfast 🙂 Looks soo tempting. I will try it for my daughters.
Thanks, Ella!
I love my oatmeal loaded with yummy things and blueberries and coconut oil definitely qualifies! This looks so good Marcie!
Thanks so much, Mariah! 🙂
I just recently tried baked oatmeal and loved it! need to make this asap! Pinning!
Thanks, Mira!
That oatmeal crisp looks super delicious! And a perfect for breakfast time! 🙂
Thank you, Christina!
This looks incredible, Marcie! I am SO not a morning person, so I love the idea of prepping the night before! And I will definitely have to try the coconut-oil/crumble thing…sounds delicious!
I’m not a morning person either — I want to snap my finger and have my coffee and breakfast ready! Since that doesn’t happen, this is the next best thing. 🙂 Thanks, Denise!
I would love this for brunch! Crisps are one of my favorite treats….love the breakfast version!
Thank you, Cathy! This was such a special breakfast!
I love this idea – and my family would love this recipe for sure!
Thanks, Jamie! 🙂
Baked oatmeal sounds great! I love the idea of being able to make it the night before. I’m all about saving time in the morning!
Thank you, Tina! I’m always up for easy morning breakfasts, and is this is definitely one of them! 🙂
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This sounds delicious! I wonder how steel cut oats would work?
Thank you, Elizabeth! I’ve wondered how steel cut oats would work myself but have yet to experiment with it. It’s on my list to try!
Do you have a calorie breakdown for this recipe? thank you
I’m sorry, but I don’t have a calorie breakdown for this, Sandra. There are many free online calorie counters that you can try, including this one from Spark People. http://www.sparkpeople.com/calorie-counter.asp
I ran out of old fashioned oats after prepping the main portion and used steel cut oats for the crumble and it was great! Same amazing flavor and just a bit more texture contrast which I loved (I’ve made this recipe he normal way lots of times too)!
That’s really good to know Sonja — I will have to try that! Thanks so much for the feedback!
So good. Making it again for the boyfriends breakfast. Swapped out the egg for a banana and threw oats in the blender and make flour. Even more oats!! Love the coconut oil in the crumble. I almost used butter but changed my mind.
I’m glad you enjoyed it, Amanda, and thank you for sharing the substitutions that you made! I really appreciate your taking the time to leave feedback here! 🙂
I love this baked oatmeal recipie. Man- the coconut oil crumble is truly AMAZING. This is going to be a regular breakfast item in our home for sure. Trying it with strawberries tomorrow! Yum! Thanks for sharing!
I’m so glad you enjoyed it, Meghan, and I so appreciate your taking the time to leave feedback on the recipe. Thank you! ?
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And the nice thing is I have everything to make this today! YUM.Love anything blueberries. Pinned
I hope you enjoy it Susan, and thank you for the pin!
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I made this and brough it into work, it is so delicious! Will definitely be making it again. I followed the recipe and used vanilla almond milk, maple syrup, coconut oil etc and it turned out well.
I’m so glad to hear that you enjoyed this Chrissie! Thank you for taking the time to leave me your feedback and have a wonderful day!
This is beyond delicious!
Thank you Robin — I’m so glad you enjoyed it!
I love this recipe and make it at home often. We are having a potluck breakfasts at work this week and I want to bring this, but want to double the recipe so there is more to go around. If I double and put in a 9×13 pan, would doubling the baking time work?
Hi Casey! I’m glad to hear you love this recipe as much as we do. If you bake this in a 9 x 13″ baking dish the baking time should actually be the same. if it doesn’t appear set, give it another 5 minutes or so!
I followed the recipe exactly using brown sugar in the main oatmeal portion. It was delicious and quite indulgent compared to my plain jane oatmeal that have eat other mornings. I’m a big fan of baked oatmeal and plan to save this for a special occasion since it was a sweet treat. I might try it without the crumble topping on regular mornings and toss on some nuts to toast up on top.
Hi Jen! Yes, this is an indulgent baked oatmeal that’s perfect for special occasions. I’m so glad you enjoyed it and thank you for your feedback!
This sounds amazing! A few questions:
1. If I double this, will it fit in a 9×13 or would it boil/bubble over?
2. Is there an advantage to using almond milk instead of cows milk? If using cows milk, would you recommend using 2% or whole?
3. If using frozen blueberries, would you thaw them and rinse them?
Thank you!
Hi Marissa! If it fits well in a 9×13 it won’t bubble over as it only puffs up so much. I prefer almond milk to dairy but you can use your favorite type — anything will work! Whole milk will taste richer…just keep that in mind. I’d definitely thaw and blot frozen blueberries in order to keep the oatmeal from becoming watery. I hope that helps!
this is my new favorite baked oatmeal! Love the streusel topping. Thanks for sharing
Thank you for the feedback and I’m so happy to hear that you enjoyed it! 🙂
This was delicious! I think next time I will put way more berries in there.
How would you suggest to prepare this to be frozen? Trying to stash my sisters freezer before her baby comes 💗.
Thanks!
Hi Allie! I’ve never tried to freeze this, but I would suggest baking it first, then portion it into squares and wrap individually so she can microwave for a quick breakfast? Let me know if you try it!