Blueberry Overnight Oats

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By Madison Wetherill | Updated: September 11, 2026 | Leave a comment
5 from 1 vote

This blueberry overnight oats recipe is one of my favorite breakfasts for busy mornings. I can make a jar the night before, then pull it out of the fridge while I'm still waking up and sipping my coffee. Not having to cook first thing in the morning is always a win.

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Two jars of blueberry overnight oats with spoons.

Blueberry Overnight Oats Recipe

I love Pumpkin Overnight Oats in the fall, so of course I needed a blueberry version for the summer months. These oats are thick and creamy, with juicy blueberries in every bite.

Fresh blueberries are great when they're in season, but when they aren't, I make overnight oats with frozen berries too. It's a make ahead breakfast I can make any time of the year!

Two jars of blueberry overnight oats on a table with a spoon in each jar.

Why You'll Love This Recipe

They're thick and creamy. If you've never made overnight oats with chia seeds, the chia seeds soak up some of the milk while the oats chill and give them that spoon-able texture.

You can use what you have. Fresh or frozen blueberries both work, and you can use your favorite type of milk and toppings.

Everyone can have their own jar. Make a few at once, then let everyone choose their toppings in the morning.

Ingredients

There aren't many ingredients in this recipe, but a few are worth talking about before you start.

Labeled ingredients for blueberry overnight oats, including blueberries, rolled oats, milk, maple syrup, chia seeds, cinnamon, and vanilla extract.

Rolled oats: Old-fashioned rolled oats give the best texture. I don't recommend instant oats because they soften quickly and can get mushy in the fridge. Steel cuts oats aren't recommended either, unless you want a gritty texture.

Chia seeds: These thicken the oats while they sit, so I wouldn't skip them. Even if you don't usually like chia seeds, you may be surprised by them here. Honestly, you can't taste them, but chia seeds are a good source of fiber.

Blueberries: Fresh, frozen or wild blueberries all work. Frozen berries will release some juice as they thaw, so don't be surprised if your oats look a little bit purple.

Milk: Regular milk or your favorite non-dairy milk will work. Oat, almond and coconut milk are all good options.

Maple syrup: Honey or agave can be used instead.

How to Make Blueberry Overnight Oats

Scroll down to the recipe card for the full step by step instructions! ⬇️

Jump to Recipe

Ready to make this super easy overnight oatmeal recipe? Here's what to do:

Looking down into a mason jar filled with rolled oats.
A mason jar filled with almond milk and oats.
  1. Grab your jar and add the rolled oats. They're going right on the bottom so we can build everything from there.
  1. Pour the milk right over the oats. No need to stir just yet, we still have a few more things to add.
A mason jar with chia seeds, oats and almond milk.
Vanilla extract, chia seeds, oats, and almond milk in a glass mason jar.
  1. Add the chia seeds. Sprinkle them right over the milk. They'll help thicken the oats while they chill and give them that creamy, spoonable texture.
  1. Add the sweetener and flavor. Pour in the maple syrup, then add the cinnamon, vanilla and blueberries. Give everything a good stir, cover the jar and refrigerate for at least 2 hours, but overnight is even better.

Check the bottom of your jar. Any dry oats or chia seeds hiding at the bottom won't soften properly, so use a spoon to scrape along the bottom before the jar goes into the fridge.

Overhead view of blueberry overnight oats in two mason jars with spoons.

Madison's Tips for Success:

I've tested this recipe and have successfully made it many times. Use my tips to ensure that your overnight oats turn out perfectly for you, too!

  1. Leave room in your jar. A little space at the top makes stirring much easier and keeps breakfast from ending up all over the counter.
  2. Wait on the crunchy stuff. Nuts and granola will soften in the fridge, so add those in the morning.
  3. Add more milk if you need it. If the oats are thicker than you prefer after sitting overnight, a splash of milk will loosen them up.

How to Store Blueberry Overnight Oats

Keep blueberry overnight oats covered in the refrigerator for up to 5 days. The oats get softer the longer they sit, so I like them best within the first few days.

I don't recommend freezing them. You'll get a better texture when they're stored in the fridge.

Serving Suggestions

Top your oats with extra blueberries, Greek yogurt, nut butter or granola. For something savory on the side, try egg bites.

This breakfast is fantastic cold, but if you want to warm it up, you can definitely do that. Just pop the jar of overnight oats into a microwave and heat them at 50% power until they are warmed to your liking. I would start with 2 minutes, then stir, taste, and continue warming them if you need to.

Blueberry overnight oats on a table with a blue cloth napkin and cinnamon sticks.

Overnight Oats Recipe FAQs

Can I make overnight oats without a Mason jar?

Absolutely. Any container with a lid will do. Choose one with a little room at the top so it's easier to stir.

Can I double this recipe?

Yes. Make a larger batch in a bowl, then divide it between jars or containers before refrigerating.

Blueberry oatmeal in two mason jars with a spoon in each jar.
Did you make this recipe?

If you make and love this recipe, please leave a 5 stars review below!

It means so much to me when you try my recipes, and I'd love to know how it goes. Please leave comments and questions below!

Blueberry overnight oats on a table with a blue cloth napkin and cinnamon sticks.

Blueberry Overnight Oats

Prep Time: 5 minutes
Cook Time: 2 hours
Total Time: 2 hours 5 minutes
5 from 1 vote
Blueberry overnight oats are super easy to prep! Mix ingredients in a jar, let them chill overnight, and your breakfast will be waiting for you the next morning.
Makes: 1 serving
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Ingredients

  • ½ cup rolled oats
  • ½ cup milk
  • 1 tablespoon chia seeds
  • ¼ cup maple syrup
  • 1 teaspoon cinnamon
  • 1 teaspoon vanilla extract
  • cup blueberries

Instructions

  • Add ½ cup rolled oats to a clean mason jar, then pour the ½ cup milk over them.
  • Then add 1 tablespoon chia seeds and the rest of the ingredients (¼ cup maple syrup, 1 teaspoon cinnamon, 1 teaspoon vanilla extract, and ⅓ cup blueberries) to the jar.
  • Stir well until thoroughly incorporated.
  • Refrigerate for at least two hours, or overnight.
  • Serve with your favorite toppings and enjoy!

Notes

Leave room in your jar. A little space at the top makes stirring much easier and keeps breakfast from ending up all over the counter.
Wait on the crunchy stuff. Nuts and granola will soften in the fridge, so add those in the morning.
Add more milk if you need it. If the oats are thicker than you prefer after sitting overnight, a splash of milk will loosen them up.

Nutrition

Serving: 1g | Calories: 491kcal | Carbohydrates: 97g | Protein: 8g | Fat: 8g | Saturated Fat: 1g | Polyunsaturated Fat: 5g | Monounsaturated Fat: 2g | Trans Fat: 0.02g | Sodium: 175mg | Potassium: 429mg | Fiber: 11g | Sugar: 54g | Vitamin A: 39IU | Vitamin C: 5mg | Calcium: 358mg | Iron: 3mg

Other Easy Breakfast Recipes

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Hey friend, I'm Madison!

I'll teach you how to make simple from-scratch recipes, like seasonings, sauces, dinners and even desserts, that make cooking from home less overwhelming and more enjoyable.
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