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Mason jar of blueberry overnight oats, topped with blueberries, coconut and granola.
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5 from 27 votes

5-Ingredient Blueberry Overnight Oats

These blueberry overnight oats only need 5 ingredients and 5 minutes of prep. You can add protein if needed, and enjoy them as a healthy, delicious breakfast. A great meal prep staple!
Prep Time5 minutes
Total Time5 minutes
Course: Breakfast, brunch
Cuisine: gluten-free, healthy, vegan, vegetarian
Diet: Gluten Free, Vegan, Vegetarian
Servings: 2 servings
Calories: 306kcal
Author: Elizabeth Emery

Equipment

  • 2 small mason jars or glass jars

Ingredients

  • 1 cup oats (old fashioned or quick cook can be used)
  • ¾ cup fresh blueberries (*see note for frozen)
  • cups milk of choice (I use oat or other dairy-free milk)
  • tablespoon chia seeds
  • tablespoon maple syrup

Instructions

  • In a large bowl or container, thoroughly mix together all ingredients until combined.
  • [OR, to optionally make your oats a purple/blue colour: first blend ½ cup blueberries and milk in high speed blender until completely smooth. Then mix blended milk into oats, chia, maple and remaining blueberries in a large bowl.]
  • Cover bowl/container and refrigerate for at least 4 hours, ideally overnight, until mixture has thickened.
  • Divide between two jars or small bowls, and optionally serve topped with any of the following: granola, seeds, cacao nibs, toasted coconut or extra blueberries.

Notes

If using frozen instead of fresh berries, note that their colour will leak. This isn't a problem - you'll just end up with blueish/purple overnight oats!
Other berries - You're welcome to switch out blueberries for any other kind of berry. Raspberries, strawberries or blackberries all work really well.
Low sugar option - Use a low sugar sweetener, less maple syrup or skip the sweetener altogether to make these oats low sugar. (The blueberries do provide a little sweetness.)
Gluten free option - Be sure to use certified gluten free oats.

Nutrition

Calories: 306kcal | Carbohydrates: 53.8g | Protein: 9.7g | Fat: 7.2g | Saturated Fat: 0.6g | Sodium: 26mg | Potassium: 55mg | Fiber: 10.9g | Sugar: 8.5g | Calcium: 152mg | Iron: 4mg