A little jar of sunshine.
Boy, do I love me a good blueberry muffin. Are you a blueberry muffin lovin’ gal or guy, too?!
The truth is that a blueberry muffin is kind of a treat and not exactly a healthy breakfast option.
That’s where these blueberry overnight oats come in! They are free of refined sugars (sweetened only with pure maple syrup or honey), rich in healthy omega-3s, and loaded with calcium.
Annnnndddd… did I mention you can make a delicious breakfast the night before in only 5 minutes? Yup!
I dare your inner blueberry muffin-loving self to see how these healthy overnight oats compare. You may never go back!
Can’t get enough overnight oats?! Check out How to Make Overnight Oats to mix and match ingredients to your heart’s content. Busy mornings never tasted so good.
Ingredients and Substitutions
For the exact measurements and detailed instructions, please see the recipe card below.
- Optional add-ins. Feel free to test the limits! Try adding Greek yogurt, protein powder, spices, or nuts to enhance health benefits and flavor.
- Oats. Stick with old-fashioned rolled oats for this recipe. They stay perfectly creamy and chewy after soaking. Quick oats get mushy, and steel-cut oats can be too firm. (Are oats gluten-free? Learn all about them!)
- Milk. Feel free to use your favorite type of milk. Cashew and oat milks are my go-tos because they are super creamy and taste great in this recipe. But almond milk, soy milk, and regular milk can all be used.
- Blueberries. You can use fresh, sweet blueberries if they’re in season and available. Otherwise, you can sub in frozen berries.
- Sweetener. Pure maple syrup is the best option, and honey works fantastically, too. In a pinch, brown sugar can be used.
- Chia Seeds. While not absolutely necessary, they add many health benefits and enhance the texture.
Pro Tip: Coconut milk is NOT recommended. This will give your oats a pretty strong coconut flavor instead of a pumpkin spice flavor.
Step-by-step Instructions
Please see the recipe card below for the full instructions, ingredient amounts, and a printable recipe.
Add the blueberries to the jar.
Add the blueberries to the bottom of the jar. Pop it in the microwave for about a minute to soften them. The jammy blueberries give the oatmeal a pudding-like texture.
Pro Tip: Stick with 8-ounce jars when making this recipe because they are easy to find and will fit an entire serving of overnight oats. A wide-mouth Mason jar is best.
Combine remaining ingredients.
Pour the oats, chia seeds, and milk into the jar with the softened blueberries.
Gently stir the mixture with a spoon until everything is well combined.
Refrigerate to set.
Place the lid on the jar and tighten. Set it in the fridge.
Let it chill for at least 4 hours, but it is best if left all night.
Serve these overnight oats with fresh blueberries, roasted pecans, or spices.
FAQs
Overnight oats can last for up to 3 to 4 days, but they are best enjoyed within 24 hours. They will start to get mushy after too long. If you’d like, you can mix everything in the jar except for the milk, which you can add the night before serving.
The temperature is your choice! This recipe is delicious both warm and cold. If you choose to heat them up, use the microwave for about a minute, adding in extra milk to get a creamy texture if needed.
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Best Blueberry Overnight Oats
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Ingredients
- ⅓ cup blueberries fresh or frozen
- ½ cup oats old-fashioned, rolled, gluten-free if needed
- 1 teaspoon chia seeds
- ½ cup milk oat, soy, or nut-based milk
- 2 tablespoons pure maple syrup or honey
Instructions
- Add the blueberries to an 8-oz. glass Mason jar. Microwave for 60 seconds, or until the blueberries begin to burst.⅓ cup blueberries
- Add the oats, chia seeds, milk, and sweetener to the jar. Stir the oats with the liquid until well combined.½ cup oats, 1 teaspoon chia seeds, ½ cup milk, 2 tablespoons pure maple syrup
- Refrigerate for at least 4 hours or up to overnight. Serve with additional fresh berries.
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Video
Notes
- Oats: Rolled oats are the best option for this recipe.
- Mason jars: Mix all of the ingredients in the Mason jar for super easy cleanup.
- Add-ins: Choose ingredients like Greek yogurt, nuts, or protein powder to really enhance this recipe.
- Chilling: Be sure to let the overnight oats sit in the fridge for at least 4 hours or up to overnight.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Other Overnight Oats Recipes
Chocolate Peanut Butter Overnight Oats
2 hrs 5 mins
Peach Overnight Oats
2 hrs 20 mins
Strawberry Shortcake Overnight Oats
2 hrs 5 mins
This tastes just like the overnight oats I used to get at Disneyland. Just add a sprinkle of pepitos and coconut flakes and it’s a perfect replica. Love this!!
Yay! So happy to hear you enjoyed the recipe, Leah! That sounds so tasty! Thanks so much for taking the time to leave a comment and rating!
I love this quick recipe! I use quick oats instead because I like the texture, and I also had to use a little more than 1/2 cup of milk suggested I did around 3/4. I’ll probably keep making this a lot.
Yay! So happy to hear you enjoyed the recipe, April! Thanks so much for taking the time to leave a comment and rating!
Thanks for sharing! Does it keep long?
You can prep everything WITHOUT the milk several days in advance. However, it’s best enjoyed within a day after you mix in the milk. Enjoy!
This look so good! What a great breakfast meal prep for the week!
Yay! So happy to hear you enjoyed the recipe, Suzanna! It’s one of my favorite breakfast prep recipes. Thanks so much for taking the time to leave a comment!
Can I substitute Ground flax seed for the chia seed?
Absolutely, Jacquie! Feel free to switch and change it up however you’d like!
If I make the whole recipe, how long will it keep in the refrigerator? This sounds absolutely delicious!
Overnight oats typically last for about 4 days in the refrigerator. The oats will get mushier as the days progress, though. I would advise prepping all of them but then saving the milk to add in the night before! Thanks for the question, Anna!
Thank you. I’m going to make them tonight!
We don’t use microwaves…is there another alternative? I would like the blueberries to be able to “burst and form a blueberry sauce.” Thanks!
Hi Kanta! Yes, there absolutely is. Simply bring them to a boil with a touch of water in a saucepan, reduce heat to a simmer, and then wait for them to “burst.” It works equally as well!