Blueberry Overnight Oats

Wake up to a jar full of these Blueberry Overnight Oats, loaded with good-for-you ingredients and full of flavor. To make this recipe, quickly combine rolled oats, milk, maple syrup, and fresh blueberries in a Mason jar and chill them in the fridge all night. This easy breakfast is the best way to start a busy day.

Best Blueberry Overnight Oats

Boy do I love me a good blueberry muffin. Are you a blueberry muffin lovin’ gal or guy, too?!

The truth is, that 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 with only pure maple syrup or honey), full of 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

To make this Blueberry Overnight Oatmeal recipe you will need these simple ingredients:

• 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 since they are super creamy and taste really good 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 fantastic, too. In a pinch, brown sugar can be used.
• Chia Seeds. While not absolutely necessary, they add many health benefits and enhance the texture.
• Optional add-ins. Feel free to test the limits! Try things like Greek yogurt, protein powder, spices, or nuts to increase the health benefits and flavor.

Pro Tip: Coconut milk is NOT recommended. This will give your oats a pretty strong coconut flavor instead of a pumpkin spice flavor.

How to Make Blueberry Overnight Oats

The process of making these blueberry muffin overnight oats recipe is relatively simple:

Add the Blueberries to the Jar

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.

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.

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, toasted pecans, or spices.

Meal Prep & Storage

• To prep and store: The recipe is perfect to prepare entirely the day before. After mixing, it will keep in the refrigerator in an airtight, resealable container or covered tightly with plastic wrap for up to 3 to 4 days. However, the oatmeal will get mushy after the first 24 hours. To ensure the best texture every morning of the week, do not add the milk to the jar until the night before serving.
• To freeze: Freezing is not recommended. The texture of the oats will not be the same and instead will be too watery.

Are overnight oats healthy?

This blueberry overnight oats recipe is both easy and healthy. Oatmeal is a good-for-you carb that keeps you full all day and has so many nutritional benefits. It also is a great source of fiber. Just be careful about add-ins, as those can increase the sugar and calorie count, making the dish less healthy.

How long do overnight oats last?

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.

Do I serve overnight oats warm or cold?

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.

Dietary Modifications

The recipe you’ll find below is already gluten-free, refined sugar-free, and vegetarian as written.  Here are some adjustments and substitutions you can make to help it fit your other dietary requirements:

• Dairy-free. Opt for a plant-based milk.
• Nut-free. Skip the nut toppings.

Expert Tips and Tricks

• Keep on rollin‘. Rolled oats are the best option for this recipe.
• Save time and dishes. Mix all of the ingredients in the Mason jar for super easy cleanup.
• Add in some extras. Choose ingredients like Greek yogurt, nuts, or protein powder to really enhance this recipe.
• Chill out. Be sure to let the overnight oats sit in the fridge for at least 4 hours or up to overnight.
• Double up. Make a big batch to enjoy this cold oatmeal the next day, as well.

Other Overnight Oats Recipes

If these hit the spot, you will love these other easy overnight oats recipes! Each is the perfect meal-prep breakfast.

Apple Cinnamon Overnight Oats and Pumpkin Overnight Oats are delicious for a fall morning.

Chocolate Peanut Butter Overnight Oats is so satisfying and such a simple recipe.

Try Strawberry Shortcake Overnight Oats or Peach Cobbler Overnight Oats for fresh and healthy oatmeal in the summer months.

More Blueberry Recipes

Blueberries pack a powerful, nutritional punch. Check out How to Freeze Blueberries so you can have them year-round.

If you’re a fan of blueberries, these Lemon Blueberry Cookies or Lemon Cupcakes with Blueberry Frosting are the perfect summer treats. Don’t forget the lemon zest!

For breakfast, try Blueberry Pancakes, Blueberry Lemon Waffles, or Lemon Blueberry Muffins.