Healthy Blueberry Crumble Bars

Healthy blueberry crumble bars made with wholesome ingredients and fresh berries. You’ll love juicy blueberry flavor paired with the sweet oatmeal crumble crust and topping!

I have been on such a blueberry kick this summer. I guess that’s what happens when your husband goes blueberry picking and brings home pounds on pounds of fresh blueberries. We actually let the berries sit out on the counter for about 24 hours, grabbing handfuls whenever we felt like it. Then I decided to turn a few into a healthy treat and ended up with these healthy blueberry crumble bars.

Stack of four blueberry crumble bars.

Goodness gracious, I’m so glad I did because I’m not kidding when I say that these little bars turned out to be one of the best things I’ve made all summer!!

They’re filled with sweet blueberry goodness, have a delicious crumble topping and taste sooo good. Plus they cut and hold together really well… as long as you let them cool before removing them from the baking pan. <– I know it’s crazy hard to wait for baked goods to cool, but it’s imperative for this recipe.

A square glass baking dish with blueberry crumble bars cut into 9 squares. A spatula, dish cloth, and blueberries are around the dish.

Seriously I can’t get over how good these are. I served them to Isaac and his brother for breakfast and they loved them! I had one for breakfast and one as a pre-workout snack two days in a row. They’re good warm, but I honestly like them even better cold straight from the fridge!

Fresh or Frozen Berries

I love making these blueberry crumble bars with fresh and juicy seasonal blueberries, but frozen should definitely work just as well if you don’t have fresh berries on hand.

Close up of blueberry crumble bars sliced in a pan. The bars are topped with an oat and hemp crumble.

They’re definitely a treat because they do have a bit of sugar, but they’re also loaded with good-for-you ingredients like fresh blueberries, coconut oil, oats and hemp hearts so you can feel good about indulging.

Side by side photos of the oat crumble for the bottom of the blueberry bars. The second photo is of a spatula spooning the blueberry mixture onto the crust.

I’ve used hemp hearts in recipes here on EBF before, but just in case some of you are new to them, hemp hearts are raw, shelled hemp seeds.

Here’s what I love about these little seeds: 

  1. They taste great — they have a nutty flavor and soft texture almost like a pine nut.
  2. They’re easy to use — you can sprinkle them on smoothies, salads, cereal or yogurt, eat them on their own or add them to recipes.
  3. They’re really good for you — Hemp Hearts are a complete protein. Per serving hemp hearts contain 10g of easy to digest protein and 10g of omega-3 + 6 fatty acids. They also have a good amount of magnesium, fiber and iron.

A square glass baking dish with blueberry crumble bars cut into 9 squares. A dish cloth is around the dish.

Like I mentioned, the bars are good at room temperature, but I think they’re best cold. If you’re taking these somewhere to share I recommend letting them chill in the fridge a bit before serving.

Stack of blueberry crumble bars. Close up of the top of the bar with an oat and hemp seed crumble.

More Bars Recipes You’ll Love

If you try these blueberry crumble bars please be sure to leave a comment and star rating below. Your feedback is super helpful for the EBF team and other EBF readers. 

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Stack of four blueberry crumble bars with an oat and hemp seed crumble topping.

Blueberry Hemp Crumble Bars

  • Author: Brittany Mullins
  • Prep Time: 15 minutes
  • Cook Time: 45 minutes
  • Total Time: 1 hour
  • Yield: 12


Healthy blueberry crumble bars made with wholesome ingredients and fresh berries. The juicy blueberry filling is tucked between two layers of the delicious oatmeal crumble.


  • 2 cups rolled oats, divided
  • 7 Tablespoons coconut oil, room temperature/solid
  • 1/2 cup coconut sugar
  • 1/2 teaspoon sea salt
  • 2 Tablespoons hemp hearts (also called hemp seeds)

Blueberry Filling

  • 2 cups blueberries
  • zest of one lemon
  • 2 Tablespoons water
  • 1 Tablespoon arrowroot powder or cornstarch


  1. Preheat oven to 350° F. Line a square (8×8) baking dish with parchment paper.
  2. Add blueberries, lemon zest, water and arrowroot powder into a saucepan. Bring to a boil over medium-high heat. Reduce heat to a simmer and stir constantly for about 3-5 minutes or until mixture has thickened and some of the blueberries have started to pop. Remove from heat and set aside.
  3. Add 1 cup of oats to your food processor and process until oats turn into a fine oat flour.
  4. Add remaining cup of oats, coconut sugar, coconut oil and sea salt into the food processor and pulse until everything is combined and the size of coarse crumbs. Don’t over process the mixture, you want to be able to visibly see some of the oat flakes.
  5. Measure out 2/3 cup of the oatmeal crumble mixture for the topping into small bowl and stir in the hemp hearts.
  6. Use remaining oatmeal crumble mixture to create crust. Evenly press into the parchment lined baking dish using your hands.
  7. Pour blueberry filling on top and sprinkle the oatmeal + hemp crumble on top.
  8. Bake for 35-40 minutes until the bars are golden brown on top and the blueberry filling is bubbling and sticking to the edges of the pan. Remove from oven and place on a wire rack to cool completely. Be patient, if you don’t let them cool before removing them from the pan they will fall apart.
  9. Once cool, cut into 9-12 bars and enjoy right away or chill in the fridge before serving. I personally like the bars chilled, after they’ve been in the fridge for a bit.
  10. Leftover bars will last 3-4 days in the fridge.


Recipe adapted from these Raspberry and Pine Nut Bars.

  • Category: Dessert
  • Method: Bake
  • Cuisine: American


  • Serving Size: 1 bar
  • Calories: 178
  • Sugar: 11g
  • Fat: 9g
  • Carbohydrates: 24g
  • Fiber: 2g
  • Protein: 3g

Keywords: blueberry crumble bars

This post is sponsored by Manitoba Harvest. As always, opinions are my own. Thank you for supporting the brands that make EBF possible.  

This post may include affiliate links. Thank you for your support.

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Recipe rating

    1. CounselorChick
      September 11, 2020 AT 12:57 pm

      Hi Brittany can I use oat flour? If so, would the 2 sups remain the same? TIA.

    2. Alissa
      July 19, 2020 AT 6:11 pm

      Was excited to try this after making your blueberry crisp recipe recently. These are SO good! I love the hemp seeds. I didn’t have any lemons so substituted a tablespoon of lemon juice and it worked great. We’ve been eating them as a dessert with some dairy free ice cream. Yum!!

      1. Brittany Mullins
        July 19, 2020 AT 11:06 pm

        Ahh that makes me so happy to hear, Alissa! I’m glad you enjoyed these bars. Thanks for taking the time to leave a comment + star rating. The reviews are super helpful for other readers, so I appreciate it. 🙂

    3. Noelle
      June 16, 2020 AT 10:30 pm

      Would I be able to use frozen blueberries or frozen berry blend?

      1. Brittany Mullins
        June 17, 2020 AT 5:32 pm

        Frozen should work just fine, you might just need to cook them longer because the frozen berries will release more liquid.

    4. Kristin Blake
      June 6, 2020 AT 12:38 am

      These are delicious!

    5. Hannah
      May 12, 2020 AT 10:45 am

      Hey! Would dried blueberries from Trader Joe’s work for this recipe?

      1. Brittany Mullins
        May 12, 2020 AT 4:04 pm

        Hey Hannah. You could certainly try it with the dried blueberries but I’m nots sure it would turn out because the juice from the berries helps to make the filling. If you’re looking for a recipe to use those dried berries, you could try my blueberry muffin energy balls. They’re SO good!!

    6. Carly
      May 8, 2020 AT 9:09 pm

      This was my FAVORITE dessert I’ve ever made and what a plus that it’s healthy! The whole pan is gone and I just made them today (the family loved it)!

      1. Brittany Mullins
        May 12, 2020 AT 9:32 pm

        Ahh that makes me so happy to hear, Carly!! I’m so glad these crumble bars were a hit. 🙂 Thanks for trying them and again for coming back to leave a comment + star rating. I so appreciate it!

    7. Crista
      April 30, 2020 AT 11:37 am

      We swapped the hemp seeds with Chia seeds and these crumble bars were a HUGE hit. Gone within 36 hours with only our family of 4 eating them.Not sure what this says about our family, but the blueberry crumble bars were delicious.

      1. Brittany Mullins
        April 30, 2020 AT 10:48 pm

        Ahh yay!! I think that just says they were a hit with your family and I’m so happy to hear that. 🙂 Thanks for trying my recipe and for coming back to leave a comment + star rating. I really appreciate it!

    8. Crista
      April 24, 2020 AT 1:11 pm

      In the Healthy Blueberry Crumble could you swap hemp seeds for Chia seeds? If so, do the Chia seeds need to soak first and what would the substitution ratio be for this recipe? Thank you!

      1. Brittany Mullins
        April 24, 2020 AT 2:12 pm

        Hey Crista! You can swap the hemp seeds for chia seeds. No need to soak them prior and you can use 2 Tablespoons!

    9. Andrea Malise
      July 31, 2019 AT 5:31 pm

      I made these to give to a friend and they were excellent! She loved them too. Thanks for the recipe.

    10. Sara
      July 27, 2019 AT 8:54 am

      These are simple, quick to put together, & down right delicious! Will def make these again!

    11. Sher
      March 1, 2018 AT 11:46 pm

      Our team supervisor at work is vegan. So for our team meeting, I decided to make the Blueberry Hemp Crumble Bars. I had all the ingredients in my kitchen except for the brown rice flour, but I had almond flour so I used this as a substitute. Other then this change, I followed the recipe exactly.

      Our team supervisor really enjoyed the bars as well as our non-vegan team members. In fact there were no left overs by the time the meeting ended. I got wonderful compliments on the dish.

      You may even get a few new followers since I posted a picture of the finished product on Facebook and some of my friends asked for the recipe. I did credit you and told them to go to your site to get the recipe.

      Thank you Brittany!!

    12. Sherrie
      August 30, 2015 AT 11:56 pm

      Earlier this summer I was looking to make a recipe EXACTLY like this. Sweet and satisfying, but healthy too, BUT I couldn’t find one. I think there are berries still at the market to get a batch of these going before the season ends. Brittany, these are PERFECT! xx

    13. Emily Schindler
      August 30, 2015 AT 8:38 pm

      I’d use it with my daily oatmeal fix — would be a great addition!

    14. Shannon
      August 30, 2015 AT 7:47 pm

      I would use it to top my smoothie bowls! And to make these bars 🙂

    15. Kimberly
      August 29, 2015 AT 6:43 am

      First I’d make these bars – they look delicious! Then, I’d use the hearts on yogurt & smoothies 🙂

    16. melissa
      August 28, 2015 AT 7:00 pm

      I love putting it in yogurt!

    17. Emily @SinfulNutrition
      August 28, 2015 AT 5:35 pm

      I’ve never tried hemp hearts, so I’d try them in some oats or a smoothie first. Thanks for the giveaway!

    18. Erin @ Her Heartland Soul
      August 28, 2015 AT 4:01 pm

      I’d want to make this recipe!

    19. Jules
      August 28, 2015 AT 2:10 pm

      Yum! I can’t wait to try these bars!

    20. raykovi1
      August 28, 2015 AT 12:06 pm

      I don’t have much experience with hemp hearts but would love to try- sounds delicious!

    21. Amanda F
      August 28, 2015 AT 11:51 am

      I love using hemp seeds in place of nuts when I make pesto and right now my basil plant is overflowing! I need to make a few batches before fall time.

    22. Jacqui
      August 28, 2015 AT 11:43 am

      I would sprinkle them on my daily greek yogurt!

    23. The Planted Vegan
      August 28, 2015 AT 11:21 am

      YUMMMM! These look so delicious! Can’t wait to try them out!

    24. Ruth
      August 28, 2015 AT 11:04 am

      This looks super fun and nutritious 🙂 and easily adaptable for any fruit that is in season!

    25. Sarah | Well and Full
      August 28, 2015 AT 10:43 am

      I LOVE hemp seeds!!! I sprinkle them on everything… salads, smoothie bowls, soups, you name it. I love how it adds crunch and protein 😀

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Parchment paper lined with protein balls.


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