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Fresh Blackberry Protein Overnight Oats

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blackberry high protein overnight oats in mason jars
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5 from 6 votes

Blackberry Protein Overnight Oats

Make a batch of high protein overnight oats to start mornings right. With 29 g protein in each jar, these are much healthier than they taste!
Prep: 15 mins
Total: 15 mins
Course: Breakfast, Snack
Cuisine: Canadian
Servings: 3 jars
Calories: 410kcal
Cost: $1.80 per jar


  • 1 pint blackberries 170 g; see Note 1
  • 1 cup rolled oats 99 g
  • 1⁄3 cup chia seeds 50 g
  • 2 1⁄2 cup plant milk (I use soy) 625 mL; see Note 2 for homemade recipe
  • 2 scoops vanilla protein powder (I use Vega) 55 g


  • Add all except a handful of the blackberries to a small saucepan on medium heat. Heat for about 10 minutes, stirring occasionally and breaking apart the blackberries with your spatula, for about 10 minutes or until mixture resembles a chunky jam.
  • Meanwhile, thoroughly combine the rest of the ingredients (oats, chia seeds, plant milk, protein powder) in a mixing bowl.
  • Spoon a layer of the bowl mixture into the bottom of each mason jar. Follow by spooning in a layer of the blackberry mixture. Repeat this layering until all the ingredients have been used up.
  • Top with the remaining blackberries.

Recipe Notes

blackberry high protein overnight oats in mason jars
  1. The sky is the limit on your fruit choices. You can just as easily sub blueberries, raspberries, strawberries, or any other soft juicy fruit into these protein overnight oats. That goes for frozen fruit, too! For larger fruits like strawberries, just make sure to slice them first before tossing them in the saucepan, to help them break down faster.
  2. Btw, here’s a soy milk recipe if you would like to use homemade milk for this!
  3. Although I’ve provided volume approximations for the ingredients, I always weigh my items on a food scale for my recipes. So, following the weight measurements will yield the best results. Plus you will have less dishes to clean if you pour ingredients directly instead of measuring them out with a spoon or cup. When I was done, I only had to wash a saucepan, a bowl, and a spatula.

The Ultimate Grab-and-Go Meal

blackberry high protein overnight oats in mason jars

I love oats for their simplicity and versatility. Anyone can whip up a batch of overnight oats and have it taste delicious the next day—it’s amazingly hard to screw up.

This blackberry concoction has been one of my favourites because not only is it delicious and filling with all that fiber and protein, it’s also sugar-free. Heating the blackberries up into a puree releases a lot of their natural sugar, and the little bit of sweetness from the protein powder makes up the rest for quite a sweet treat.

I’ve been eating these protein overnight oats throughout the past week, not only for breakfasts but even sometimes at lunch when I don’t have much time between classes to come home and make a sit-down meal.

Nutrition Information

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13 thoughts on “Fresh Blackberry Protein Overnight Oats”

  1. Gregory Lepkowski

    5 stars
    Very grateful for this recipe. I am gonna be on the lookout for blackberries next time at the store.

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  4. I’ve never made overnight oats before, but this looks so good I need to try it. Thank you for sharing at The Really Crafty Link Party & happy new year.

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