Blueberry Overnight Oats

Easy vegan blueberry overnight oats make a simple, healthy breakfast. Mix the ingredients, including chia, the night before, and then wake up to breakfast. Serve overnight oatmeal with blueberry goodness heated up or eat it cold. Add granola and fresh blueberries as toppings!

A glass full of blueberry overnight oats is in the foreground with blueberries and granola on top and another glass behind it.

I love making blueberry overnight oats and having them on-hand the next day for breakfast, a snack, or even dessert. They really are that delicious!

Overall, this blueberry overnight oatmeal recipe is healthy and nutritious!

Why This Recipe is a Winner

  • Blueberries and almonds are combined to make tasty blueberry milk that combines quite nicely with the oats
  • Chia seeds make the oatmeal thicker and healthier, too
  • Stevia adds a hint of sweetness, complementing the sweetness of the blueberries.

What You Need

You can find the full printable recipe, including ingredient quantities, below. But first, here are some explanations of ingredients and steps to help you make this recipe perfect every time.

Here are the ingredients you’ll need for this recipe:

  • Rolled oats — These are also referred to as old fashioned oats. If you use instant oatmeal, it will set more quickly. You may also need to increase the amount used to get the right consistency.
  • Chia seeds — I buy chia seeds as part of my regular vegan shopping at Costco!
  • Raw almonds
  • Stevia — Use your sweetener of choice, such as maple syrup, agave nectar, or a zero-calorie sweetener such as stevia, monkfruit, etc.
  • Vanilla extract
  • Blueberries — I use fresh blueberries, but you can substitute frozen.
  • Granola — I like adding a little bit of protein granola on top.

How to Make Blueberry Overnight Oats

  1. Make blueberry milk by combining almonds with other ingredients, including blueberries in a blender. Pulse until a smooth, milk-like substance is created.
  2. Pour the rest of the oats into a bowl and stir in the blueberry plant-based milk. Cover and refrigerate for at least two hours, up to overnight.
  3. Once the oats are set, spoon it into serving dishes and top with granola and fresh blueberries.

Here’s a detailed step-by-step process to make these delicious overnight oats.

Step One: Blueberry Almond Milk

This recipe begins by making homemade almond milk. It’s actually pretty tasty and colorful on its own, but we’ll be using it to make oatmeal for this recipe.

The ingredients to make the "blueberry milk" or sauce is in a blender.

Blend this to create a blueberry-infused, plant-based oatmeal almond milk.

The sauce at the bottom of the blender is la purple hue because we've added fresh blueberries.

This homemade almond milk is much healthier than the almond milk at the store. Turns out, there’s not a lot of almond in store-bought almond milk.

Step Two: Pour Over Oats and Chill

The blueberry milk from the blender is being poured over a bowl of oatmeal.

Pour the blueberry almond milk over the oats, give it a stir, cover, and refrigerate.

The next day you’ll wake up to oatmeal!

The blueberry overnight oats is in a glass and oozing over the side.

Healthy Overnight Oats

This overnight oats recipe is made with chia seeds. That’s because chia seeds offer:

  • Omega-3s
  • Fiber
  • Protein
  • Calcium
  • Gelling power

Regarding gelling power, chia seeds absorb liquid and create a pudding-like consistency. If you doubt the chia seeds’ ability to produce a pudding, you’re missing out. Check out my Chocolate Chia Pudding recipe. It is amazing, and it works every time!

You can serve this for breakfast, but it makes a pretty tasty (and healthy) dessert too!

The glass of overnight oats is topped with fresh blueberries and granola.

Frequently Asked Questions

Are overnight oats healthy?

Oatmeal is a whole grain, which means it’s a nutritious food to include in your diet. It’s also packed with fiber, in addition to other important vitamins and minerals. As a result, overnight oats are healthy to include in your diet.

How long do you soak overnight oats?

Soak overnight oats for at least two hours to allow the liquid to break down the oatmeal starches. You can eat oatmeal straight from the box, but it’s not as tasty. Allow the oatmeal to soak at least two hours, but preferably 6 to 7 hours achieves soft, tender oatmeal.

What are the benefits of overnight oats?

There are a lot of benefits to including overnight oats in your diet. Overnight oats are easy to make, healthy, and a perfect meal prep recipe! Keep mornings simple: exercise and grab overnight oats from the refrigerator.

How long do soaked oats last in the fridge?

When properly stored, overnight oatmeal with blueberries can last in the fridge for up to 5 days. Just note, the oats will become softer the longer they sit, so if you prefer firm oatmeal, you’re better off eating them within a couple of days.

Can you use regular oats for overnight oats?

You can use instant or regular oats instead of rolled oats, but they will turn soft much more quickly. In fact, instant oats will be ready in around 30 minutes to an hour, which is great if you’re in a hurry.

Can you heat overnight oats?

You can serve overnight oats heated or cold. For heated overnight oats, simply place them in the microwave and cook in 30-second increments until heated through. Then top with additional blueberries and granola.

Marly’s Tips

  • I make my overnight oats without yogurt, but you can add a dollop of vegan yogurt as a topping.
  • If you’re concerned about overnight oats calories, substitute 1¼ cups unsweetened almond milk for the almonds and water. This will reduce the number of calories coming from raw almonds.
  • Add a handful of dried strawberries for even more tasty flavor.
  • If you prefer thicker overnight oats, increase the chia seeds by a tablespoon. If you prefer thinner, reduce the chia seeds.
  • You can add a drizzle of blueberry sauce for added flavor and panache!

More Vegan Oatmeal Recipes

If you love this Blue Overnight Oats, you will love these tasty vegan oatmeal recipes too:

A single glass of overnight oats is topped with fresh blueberries and granola and has a spoon in it.
The glass of overnight oats is topped with fresh blueberries and granola.

Blueberry Overnight Oats

Make this simple vegan blueberry overnight oats recipe topped with healthy granola and lots of fresh super food blueberries! Serve these nutritious refrigerator oats for breakfast or dessert!
4.67 from 3 votes
Course: Breakfast
Cuisine: American
Prep Time: 5 minutes
Cook Time: 2 hours
Total Time: 2 hours 5 minutes
Servings: 2
Calories: 290kcal
Author: Namely Marly

Ingredients

  • 1 cup rolled oats
  • 1 tablespoon chia seeds
  • 2 tablespoons raw almonds
  • cups water
  • 2 teaspoons stevia (see note)
  • 1 teaspoon vanilla extract
  • ½ cup blueberries , fresh or frozen
  • 1 tablespoon granola

Instructions

  • Add 1 tablespoon of the oats, the chia seeds, almonds, water, stevia, and vanilla in a blender. Blend until smooth. Add a quarter cup of blueberries (fresh or frozen) to the milk and pulse until smooth.
  • Pour the rest of the oats in a bowl. Pour the blueberry plant-based milk over the oats. Stir to combine. Cover and refrigerate at least two hours, or overnight.
  • Once the oats are done, pour into serving dishes and top with granola and remaining fresh blueberries.

Recommended Equipment

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Notes

If calories are important to you, substitute 1¼ cups unsweetened almond milk for the almonds and water. I like using raw almonds because you get more of the nutritional value, however, there are more calories and fat. 
If you’re subbing store-bought almond milk for the almonds and water, be sure to add the chia seeds too. The chia seeds are important for absorbing the liquids and creating thicker oatmeal.
If you prefer thicker overnight oats, increase the chia seeds. If you prefer thinner, reduce the chia seeds.
If you don’t want to use Stevia, feel free to sub in a tablespoon of agave or maple syrup. 
Nutrition Facts
Blueberry Overnight Oats
Amount Per Serving
Calories 290 Calories from Fat 90
% Daily Value*
Fat 10g15%
Saturated Fat 1g5%
Sodium 15mg1%
Potassium 289mg8%
Carbohydrates 41g14%
Fiber 8g32%
Sugar 5g6%
Protein 9g18%
Vitamin C 3.5mg4%
Calcium 91mg9%
Iron 2.9mg16%
* Percent Daily Values are based on a 2000 calorie diet.

The nutrition information shown is an estimate provided by an online nutrition calculator and should not be considered a substitute for a professional nutritionist’s advice.

This post was originally published in 2020 and was updated to include new photos, new text, and an updated recipe in 2021.

5 Responses to Blueberry Overnight Oats

  1. Avatar thumbnail image for MarlyVera (from Lisbon - Portugal) Reply

    Hi, Mary! It was my breakfast for today (could not wait to try it!) and really enjoyed it, as I had never tried pureeing the fruit with the milk, for soaking.
    Thanks a lot for this great idea and I’ll be looking forward to others of the same kind. 🙂

    • Avatar thumbnail image for MarlyMarly

      Thanks, Vera! So glad you tried and liked this recipe! Yes, more delicious healthy recipes to come!

  2. Avatar thumbnail image for MarlyJill McCarthy Reply

    This has been my breakfast for the past month! I skip the stevia and granola, and add cinnamon. I’ve found the chia seeds to be a bit unpredictable—sometimes they expand and other times they done. But, I like it either way. Thanks for sharing.

    • Avatar thumbnail image for MarlyMarly

      So glad you like this blueberry overnight oats recipe, Jill! Love your changes — and I agree, sometimes cinnamon is just the right “sweetener”! 🙂

  3. Avatar thumbnail image for MarlyJulie Reply

    I make these overnight oats all the time and I just love the flavor!

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