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Blueberry Overnight Oats

  • Author: Erin Jensen
  • Prep Time: 10 minutes
  • Cook Time: 30 minutes
  • Total Time: 40 minutes
  • Yield: 1-2 servings 1x
  • Category: Breakfast
  • Method: Refrigerator
  • Cuisine: American


Blueberry Overnight Oats – such a great way to start the day!


  • 1 small banana
  • 1/2 cup unsweetened almond milk
  • 1 tablespoon real maple syrup
  • 3/4 cup rolled oats
  • 1 tablespoon chia seeds
  • 1 teaspoon vanilla extract
  • Fresh Blueberries (use as much or as little as you like – I recommend 1/2-1 cup)
  • (optional) 1 teaspoon fresh lemon zest


  1. Place banana in small bowl and mash with a fork until smooth.
  2. Add vanilla extract, almond milk and maple syrup; stir until smooth.
  3. Add oats, chia seeds and lemon zest (if using); stir to combine.
  4. Pour into airtight container and let sit anywhere from 30 minutes to overnight.
  5. Add blueberries when serving OR add the night before – as long as they are firm blueberries they will be fine.
  6. Feel free to drizzle with a little honey if you want before serving!


  • Blueberries: if you are prepping the for breakfast I would suggest placing overnight oats in a mason jar and adding blueberries on top.  You can mix them in and they will be fine overnight if they are nice and firm.  You can also just add in fresh blueberries upon serving.
  • How long to let sit: The oats will be ready to eat anywhere between 30 minutes or overnight and will be good up to 5 days.  Figure out what you prefer as far as how long you want them to sit before eating!
  • How to Store Overnight Oats – Overnight oats can be stored in an airtight container in the refrigerator for up to 5 days.
  • Are Oats Gluten-Free – Oats in generally are naturally gluten-free, but sometimes they go through a facility where they are cross-contaminated.  To ensure your oats are gluten-free, just carefully read your labels to make sure the oats are certified gluten-free!
  • When are Blueberries in Season – blueberries are in peak season July through mid-August.
  • Do You Eat Overnight Oats Hot or Cold – that is really up to you! Most people tend to prefer eating them cold (people love being able too just grab these out of the refrigerator and go in the morning). But, if you prefer them warm/hot just pop them in the microwave for 30-60 seconds at a time until they have reached your desired temp.
  • Storage: overnight oats can be stored in the fridge for up to 5 days.
  • Can I use Frozen Blueberries: you can definitely use frozen blueberries if you prefer!
  • Gluten-Free: ensure you are using Gluten-Free Certified oats!

Keywords: blueberry overnight oats