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Home Recipes By Meal Dessert

Berry Crumble Bars (Gluten-free, dairy-free, vegan)

16 Reviews Recipe
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By: Erin Antoniak • Updated On January 18, 2023

This post may contain affiliate links. Please read my disclosure policy.

Updated: April 2019

A healthy dessert recipe for berry crumble bars, made completely gluten free and vegan so they are perfect for all diets! Using real fruit and no refined sugar, these bars are perfectly sweet with a delicious almond flour oatmeal crust.

berry crumble bars on parchment paper

Fresh, sweet berry crumble bars filled with strawberries, blueberries, and raspberries.

You’re going to want to make this recipe as soon as possible. The thick almond flour and oatmeal base is really just a delicious platform for the thick berry jam made from chia seeds and a few other simple ingredients.

This whole recipe in total only requires 9 ingredients from start to finish, and for something like berry crumble bars, which typically have three layers, that is impressive. I love making bar recipes so much. My Copycat Starbucks Oatmeal Fudge Bars Healthy are another one of my favorites!

Plus they are made from real, wholesome ingredients and won’t leave you with that crazy sugar crash after! 😉

bite out of berry crumble bar

Let’s break berry crumble bars down layer by layer

The crust and crumble

  • oatmeal
  • almond flour
  • nut butter of choice (I’ve tried with almond butter and peanut butter)
  • maple syrup

Mix it all together with a little bit of baking powder and a little bit of baking soda and you’re going to want to stick your hand in so you can eat some of those chunks.

Now the mixed berry chia jam filling that is literally my favorite jam I’ve ever had, seriously. It’s perfectly sweet with a little tang. I’ve only ever made this with frozen berries, but I’m sure you could use fresh as well.

The berry layer

  • mixed berries, I like to buy frozen berries and use them in this recipe because it’s a cheaper and more efficient way to get a variety of berries for better price. You can definitely use fresh berries, but frozen will most likely be cheaper.
  • lemon juice
  • maple syrup
  • chia seeds
berry crumble bar

How to make berry crumble bars

They are actually really easy to make, even though they can seem intimidating with all of the layers. Trust me on this one, you’re going to be making these bars for every single friend gathering or holiday brunch.

First. You’ll start off by making your chia jam, so that it has time to sit and gel a little bit before needing to be baked.

In a large saucepan over medium-high , add your berries, maple syrup, and lemon juice. They will take about five minutes to reduce down, and make sure you are using some sort of potato masher or large fork to press them down. You want your berries to be bursting and not in original shape.

Once completely warmed through, turn off heat and add in chia seeds. Stir well to combine. Let cool for five minutes on stove top before putting into the fridge for the next 20 minutes.

Second. Start making your crust and crumble. It’s may one of the easiest things in the world to do.

You mix together your flour, oatmeal, salt, and baking powder. Then directly to that bowl add in your nut butter and maple syrup. You’re gonna want to mix this really well, until it holds shape and there is no dry or loose flour.

It’s okay if its crumbly because well, it is a crumble, but just make sure everything is incorporated. I liked to use my hands for that.

You’re going to want to reserve a heaping 1/2 cup of the dough for later, so set that aside for now. But then press the remaining dough into a greased 8×8 dish until it is completely flat, tightly packed, and touching all corners.

Third. Take your jam out of the fridge and pour it onto the unbaked crust. Sprinkle remaining crumble on top of berry jam.

Fourth. Bake in oven for 35-40 minutes or until golden brown. Let cool completely before cutting into.

Lastly. Cut and serve!

berry crumble bars

How to store berry crumble bars

If you aren’t going to be eating them right away, I highly suggest storing them in the fridge for freshness. As we cook with ingredients like almond flour and real food, there are no preservatives to help maintain freshness, so I highly recommend eating within the first 2-3 days.

If you make this recipe, be sure to comment below and let me know how it was! Also tag @erinliveswhole on Instagram and use the hashtag #erinliveswhole so I can see it and feature you!

If you liked this recipe, you’ll want to try these!

  • Healthy Strawberry Crisp
  • Chocolate Shortbread Bars
  • Triple Layer Blueberry Cheesecake Bars
mixed berry crumble bars
berry crumble bar
5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.9 from 16 reviews

Mixed Berry Crumble Bars (Gluten-free, dairy-free)

A healthy dessert recipe for berry crumble bars, made completely gluten free and vegan so they are perfect for all diets! Using real fruit and no refined sugar, these bars are perfectly sweet with a delicious almond flour oatmeal crust.

Prep: 30 minutes Cook: 40 min Total: 1 hour 10 minutes
Yield 12 bars 1x
Units Scale
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Ingredients

Crust + Crumble

  • 1 1/2 cups almond flour
  • 1 cup rolled oats
  • 1 tsp baking powder
  • 1/2 tsp salt
  • 1/2 cup maple syrup
  • 1/3 cup almond butter

Filling

  • 2 cups frozen berries (I did 1 cup each frozen raspberries + blueberries)
  • 1 Tbsp lemon juice
  • 2 Tbsp maple syrup
  • 1/4 cup chia seeds

Instructions

  1. Preheat oven to 350F and line an 8×8 baking pan with parchment paper or nonstick spray.
  2. Warm berries, lemon juice, and maple syrup in a saucepan on medium heat.
  3. Continually mash with fork or potato masher until berries are bursting.
  4. Turn off heat and add in chia seeds.
  5. Stir and let cool completely, putting in fridge for 30 minutes, allowing the mixture to firm up.
  6. In a bowl, combine almond flour, oats, baking powder and salt.
  7. Add in maple syrup and almond butter and stir, feel free to use your hands to make sure everything is blended completely. You should be able to pinch the mixture and have it stick together.
  8. Save a heaping 1/2 cup of dough to the side and flatten the rest into the 8×8 dish, pressing down firmly on the bottom. Set aside.
  9. After jam has chilled in fridge, pour berry filling over top of crust.
  10. Sprinkle remainder of topping evenly over top of filling and bake for 35-40 minutes or until golden brown.
  11. Let cool before cutting.
  12. Enjoy!
  13. Store in fridge.
Author: Erin Antoniak Category: paleo, vegan, gluten-free, grain-free
berry crumble bar

Did you make this?

Leave a comment below and tag @erinliveswhole on social media!

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There may be affiliate links in this post! By purchasing a product I recommend, I may receive a small compensation. However, I only recommend products I absolutely love and use myself. Thank you for supporting Erin Lives Whole, it helps keep this blog afloat 🙂

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Recipe Rating




  1. Sophie says

    Posted on 3/1 at 11:05 am

    These were SOO easy and yummy! I made them before a road trip and they were a perfect morning snack. I actually ended up eating them with yogurt for breakfast as well! I used almond butter but I may do peanut butter next time. Would make again and again!

    Reply
    • Erin says

      Posted on 3/2 at 7:51 pm

      Hi Sophie, so glad you enjoyed them!! 🙂

      Reply
  2. Veronica says

    Posted on 10/30 at 6:47 pm

    Made this today and it’s SO yummy! I didn’t have almond butter so I used peanut butter and it was delicious. I always make your raspberry chia jam, so I knew this would be so good

    Reply
    • Erin says

      Posted on 11/2 at 1:11 pm

      Hi Veronica, thank you so much for your kind words! I am so happy you enjoyed it and made it your own!

      Reply
  3. Katie says

    Posted on 7/10 at 5:54 pm

    These are DELICIOUS! So easy to make. I used mostly blueberries and raspberries, but also mixed in some strawberries. Everyone in the fam loves them!

    Reply
    • Erin says

      Posted on 8/2 at 10:53 pm

      Hi Katie, I’m thrilled you and your family love the bars so much! 🙂

      Reply
  4. Alona says

    Posted on 6/14 at 6:44 pm

    Make this all the time & still can’t get enough

    Reply
    • Erin says

      Posted on 8/3 at 11:00 pm

      Hi Alona, I am thrilled you love the bars!!

      Reply
  5. Maria says

    Posted on 5/1 at 11:19 pm

    These were pretty tasty but after making the strawberry crisp bars (I made them mixed berry) I was a little disappointed. Not as much of a flavor in the jam as other recipes I’ve tried. Still pretty good but I just found the other recipes I’ve made of Erins are more of a hit.

    Reply
  6. Megan says

    Posted on 3/2 at 1:50 pm

    Could I sub rice flour for the almond flour?

    Reply
    • Erin says

      Posted on 8/9 at 8:02 pm

      Hi Megan, yes, you can use a different flour. Before you bake just be sure to check the ratio because some flours are not a 1:1 ratio. Let me know what flour you use and how it comes out! 

      Reply
  7. Joy says

    Posted on 2/2 at 8:13 am

    Very easy & delicious! I used fresh Blueberries instead of frozen. Next time I’m going to try using raspberries or strawberries too! This definitely will be my go to for crumble bars. I love them!

    Reply
    • Erin says

      Posted on 2/5 at 5:19 pm

      So happy that you love them!!

      Reply
  8. Kristi says

    Posted on 9/20 at 5:40 pm

    So love this recipe! My kids love it even the kids with no wheat or dairy allergies. Thank you for this recipe.

    Reply
    • Erin says

      Posted on 9/22 at 2:08 pm

      I’m so glad they liked it!! 🙂

      Reply
  9. Michelle Finan says

    Posted on 9/18 at 1:10 pm

    Do you have to put the Chia seeds in this?

    Reply
    • Erin says

      Posted on 9/18 at 1:19 pm

      Yes, it will not ‘gel’ without it.

      Reply
  10. Laurence says

    Posted on 8/19 at 7:01 pm

    Hi!
    I was wondering if it would be possible to make an apple version of this recipe ?

    Reply
    • Erin says

      Posted on 8/19 at 8:27 pm

      I think it would work! Just dice apples or slice them thin.

      Reply
      • Laurence says

        Posted on 9/20 at 6:29 pm

        Hi me again! 🙂
        I was also wondering if this recipe could be frozen if made in big batches ?
        My best friends is getting married next weekend, and I’m in charge of doing all the desserts. Since I can’t make everything last minute, I was wondering if I could freeze it in the big baking sheet I’ll be baking them, and thaw them on my way to the wedding and cut them there in pieces ?
        Sorry I know it’s a weird question ahah!

        By the way, I did a test batch with sunflower seed butter and it was simply amazing!! 🙂

      • Erin says

        Posted on 9/22 at 2:09 pm

        I haven’t tried freezing them myself! I’mafraid the bottoms would get soggy…but maybe you could do a little test batch?!

  11. Alex says

    Posted on 8/13 at 3:04 pm

    Made these a while back and they were a huge success!

    Question- can I sub agave for maple syrup?

    Reply
    • Erin says

      Posted on 8/14 at 5:27 pm

      Yes you totally can!

      Reply
  12. Melissa says

    Posted on 8/3 at 11:13 am

    Always looking for recipies that will work for everyones eating habits and this is a great one! Im making this for the 2nd time but am going to add more nut butter so that it will taste even more like a pb&j! Yum!
    Thanks so much, Erin!

    Reply
    • Erin says

      Posted on 8/5 at 8:18 pm

      Thanks for sharing Melissa!!! So glad you like them!

      Reply
  13. Ali Tate says

    Posted on 7/11 at 10:17 am

    Hi
    I’m wanting to make these but you call for 1/2 cup of maple syrup and according to your instructions i am to add that to both the sauce and the flour base. So how much goes in each. Maybe I’m not seeing it.

    Reply
    • Erin says

      Posted on 7/11 at 11:39 am

      1/2 cup goes into the crumble, and 2 tbsp goes into jam – you can see that in the ingredients list portion of this recipe.

      Reply
  14. Lisa Hipelius says

    Posted on 6/4 at 9:10 am

    Could I substitute the nut butter for sunflower seed butter?

    Reply
    • Erin says

      Posted on 6/4 at 2:00 pm

      Yes!! Should work well 🙂

      Reply
  15. Katie says

    Posted on 5/31 at 7:01 am

    Can I sub almond flour with cassava ?? Or green banana flour?

    Reply
    • Erin says

      Posted on 5/31 at 3:28 pm

      Cassava should work!!

      Reply
  16. Morgan says

    Posted on 5/15 at 9:02 pm

    This. Is. Incredible!!!! It almost taste like a pop tart but obviously 100x better. Love, love, love and HIGHLY recommend!!!!!

    Reply
    • Erin says

      Posted on 5/17 at 5:15 pm

      Morgan, this makes me so happy!! So glad you like them!

      Reply
  17. Chelsea says

    Posted on 4/18 at 7:42 pm

    Erin, a few weeks ago I made this recipe but as I’m coming back to make it for a second time I see it’s quite different. Do you still have the old recipe posted? It quickly became a family favorite and I was planning to make it for an Easter treat.

    Reply
    • Erin says

      Posted on 4/19 at 10:40 am

      Hi Chelsea!! Ahhh! Just updated the recipe, didn’t think anyone was making it:)

      Here is the old recipe below:
      *Jam recipe stays the same!

      Crust:
      2 cups almond flour
      2 tablespoons melted coconut oil
      1 tablespoon vanilla
      1/4 teaspoon salt
      1-2 tablespoon water

      Combine this well and bake in 8×8 pan at 350 for 12-14 minutes. Let cool before putting jam on.
      Crumble:
      1 cup walnuts
      1/2 cup unsweetened shredded coconut
      2 tablespoons maple syrup/honey
      1 tablespoon coconut oil
      1/4 teaspoon salt

      Pulse in food processor until crumbles.
      Add jam to cooled crust, then add crumbles on top.
      Bake in 350 oven for about 15 minutes

      Cool before cutting and store in fridge!

      Hope that helps 🙂

      Reply
      • Chelsea says

        Posted on 4/23 at 8:10 pm

        Erin, thank you so much! It was a huge hit with my kids. I made it for Easter and everyone loved it!

      • Erin says

        Posted on 4/24 at 1:12 pm

        Yay!! Thank you for sharing, Chelsea 🙂 Glad I could get you the old recipe lol!!

  18. Jen says

    Posted on 4/17 at 1:57 pm

    What can I substitute for chia seeds? Arrowroot? Flaxseeds?

    Reply
    • Erin says

      Posted on 4/17 at 3:11 pm

      Arrowroot would be good! Should help thicken. Please note this recipe has changed, as I worked on updating it today for a new version 🙂

      Reply
  19. Michelle says

    Posted on 3/1 at 3:28 am

    These look incredible!
    My little people would love these, but what could I use in place of walnuts ??
    (kindy is a nut-free zone) ?

    Reply
    • Erin says

      Posted on 3/1 at 4:31 pm

      Maybe sunflower seeds?! They might work!

      Reply
  20. Vanessa says

    Posted on 2/20 at 3:36 pm

    Thanks for sharing! Do they keep long?

    Reply
    • Erin says

      Posted on 2/20 at 4:33 pm

      In the fridge for 5 days! 🙂

      Reply
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mixed berry crumble bars