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Home » Dessert » Gluten-Free Blackberry Crumb Bars (Vegan, Allergy-Free)

Gluten-Free Blackberry Crumb Bars (Vegan, Allergy-Free)

Published: Aug 3, 2020 by Rebecca Pytell · This post may contain affiliate links.

Jump to Recipe

These super easy Gluten-Free Blackberry Crumb Bars are vegan, allergy-free, and loaded with sweet juicy blackberries! Made with a sweet dairy-free buttery crust and crumb topping, these blackberry bars are a healthy dessert recipe served warm like a slice of pie with melty ice cream and a fork or eaten cold with your hands!

sliced gluten-free blackberry crumb bars with image text

Bar-style desserts are the best, aren't they? I mean, that's why we all love brownies so much, right? Being a little obsessed with blackberries this year, using some of those delicious, sweet, juicy berries for some crumb bars sounded like a good idea! With a super simple gluten-free crumbly crust, a layer of fresh blackberries, and a crumble topping, they're a perfect summer treat!

gluten-free blackberry crumb bars layered in baking pan with parchment paper

How to make the Sweet Shortbread Crust

The bottom crust and top crumb are the same. You'll use about ⅔ of the dough for the bottom, leaving just enough for a light crumble topping!

What you need:

  • Gluten-Free All-Purpose Flour
  • Brown Rice Flour (you can swap this for more all-purpose)
  • Flax Egg
  • Granulated Sweetener
  • Light Brown Sugar Sweetener
  • Baking Powder
  • Cinnamon
  • Vanilla
  • Vegan/Soy-Free Butter

To make the crust:

  1. In a bowl, combine the flours, prepared flax egg, sweeteners, baking powder, cinnamon, and vanilla. Mix them together completely.
  2. Add the cold cubed butter and crumble it into the flour mixture with your fingers until the butter is distributed throughout. The dough should be sandy.
  3. Press about ⅔ of the dough into a lined 8x8 inch baking pan (about ¼ inch thickness).
  4. Place the rest of the dough and the baking pan in the fridge while you make the berry layer.

9 cut bars of gluten-free blackberry crumb bars

Using Fresh or Frozen Blackberries

You can use either or BUT, please use fresh blackberries if you can. You need about 12 ounces, 2 ¼ cup of berries. If you are using frozen, you'll want to have them defrosted and any excess juice drained off. Otherwise, your bars will be super soggy. The bottom crust is not thick, so too much berry juice and water from any ice is a no-no.

Making the Blackberry Layer

All you have to do if toss the blackberries together with some corn starch (or arrowroot starch) and granulated sweetener. Just so they are lightly dusted before you add them to the cold crust that you pressed into your baking pan. Then cover the top of the berries with the rest of the dough you saved; crumble it over the top evenly.

corner cut gluten-free blackberry crumb bar

Additional Baking Tips and Storage

  • If you have any super big blackberries, gently cut them in half.
  • Make sure the dough is cold before you bake it in the oven (placing it in the fridge while you prep the berries is enough time to chill!)
  • You can use a smaller baking pan than an 8x8 inch if you want a thicker crust and more crumb topping. Do not use anything bigger though. You won't have enough dough or berries.
  • Make sure to line your baking pan with cut parchment paper for the easiest, cleanest, removal.
  • The bars need to cool COMPLETELY before cutting them. I didn't cut my bars until the next day. I let them cool completely in the fridge and got the best result.
  • Store the bars in an airtight container in the fridge for up to 5 days. Freeze the bars wrapped individually in foil or wax paper for up to 6 months, thawing them out in the fridge.

Perfect for Any Diet

These bars are super kid-friendly and adult-loved so everyone in the family with LOVE a square of the goodness! They're:

  • Gluten-Free
  • Vegan
  • Allergy-free (Dairy-Free, Soy-Free, Egg-Free, Nut-Free, Peanut-Free, Wheat-Free, Sesame-Free, Corn-Free, Coconut-Free)
  • Has No-Added Sugars

overhead view of cut gluten-free blackberry crumb bars

How to Serve Crumb Bars

Are they a dessert bar or a breakfast bar? You tell me! Either way works since they are healthy and really depends on what you serve them with! You can enjoy the bars warm like a slice of pie (blackberry pie bars, anyone?) with a scoop of melty dairy-free vanilla ice cream! Eat them with a fork and enjoy it as a dessert. Eat them warm or cool for breakfast or brunch as is or you can also serve them straight from the fridge for a quick mid-morning snack, eaten with your hands!

Gluten-Free Blackberry Crumb Bar Recipe

hand grabbing a bitten gluten-free blackberry crumb bar

Print

Gluten-Free Blackberry Crumb Bars (Vegan, Allergy-Free)

9 cut bars of gluten-free blackberry crumb bars
Print Recipe

★★★★★

5 from 1 review

These super easy Gluten-Free Blackberry Crumb Bars are vegan, allergy-free, and loaded with sweet juicy blackberries! Made with a sweet dairy-free buttery crust and crumb topping, these blackberry bars are a healthy dessert recipe served warm like a slice of pie with melty ice cream and a fork or eaten cold with your hands!

  • Author: Rebecca @ Strength and Sunshine
  • Prep Time: 15 Minutes
  • Cook Time: 25 Minutes
  • Total Time: 40 minutes
  • Yield: 9 Bars 1x
  • Category: Dessert, Breakfast
  • Method: Bake
  • Cuisine: American

Ingredients

Scale

For the Crust and Crumb:

  • 1 Cup Gluten-Free All-Purpose Flour
  • ½ Cup Brown Rice Flour*
  • 1 TB Milled Flax Seed + 2 TB Water
  • ½ Cup Granulated Erythritol (or preferred granulated sugar)
  • ¼ Cup Brown Sugar Erythritol (or preferred light brown sugar)
  • ½ Tsp Baking Powder
  • 1 Tsp Cinnamon
  • ½ Tsp Pure Madagascar Bourbon Vanilla Extract
  • 4 TB (½ a stick) Vegan/Soy-Free Butter (cold and cubed)

For the Blackberries:

  • 2 ¼ Cup (about 12 oz) Fresh Blackberries**
  • 1 TB Corn Starch or Arrowroot Starch
  • ¼ Cup Granulated Erythritol (or preferred granulated sugar)

Instructions

  1. Preheat your oven to 400°F.
  2. In a large mixing bowl, combine all the crust ingredients except the cold butter and mix together.
  3. Once mixed, add in the cold and cubed butter, kneading it in with your hands until the dough becomes sandy and hold shape if pressed.
  4. Line an 8x8 inch baking pan with parchment paper*** and press about ⅔ of the dough into the bottom of the pan, about ¼ inch thickness. Place the pressed dough in the fridge along with the bowl of extra crumble.
  5. In another bowl, combine the blackberries, starch, and sweetener. Toss together gently to coat the berries.
  6. Take the chilled dough out of the fridge and add the berry layer to the crust, leave a little room around the sides for less messy bars. Sprinkle the reserved crust dough over the top of the berry layer to create the crumble.
  7. Bake the bars in the preheated oven for 24-30 minutes.
  8. Remove and let the bars cool slightly before chilling completely in the fridge (keep them in the pan when chilling*).

Notes

*You can use more all-purpose instead of using the brown rice flour.

**If using frozen blackberries, thaw and drain first.

***I lined my pan by cutting two strips of parchment to cover all four sides of the pan.

****You can cover the chilling pan of bars with foil while in the fridge if leaving them overnight. If you do, cut a few slits in the foil to prevent moisture build-up.

Nutrition

  • Serving Size: 1 Bar

Keywords: berry bars, blackberry pie, crumb bars, pie bars, dessert bars, breakfast bars, blackberries, gluten-free, vegan, vegetarian, allergy-free, dairy-free, egg-free, soy-free, nut-free, peanut-free, coconut-free, corn-free, sesame-free, sugar-free, kid-friendly

Did you make this recipe?

Tag @rebeccagf666 on Instagram and hashtag it #strengthandsunshine

collage image of gluten-free blackberry crumb bars with image text

A slightly sweet and buttery crust with a simple crumb topping, sandwiching a bursting-with-blackberries fruity layer! These bars are so good and will get gobbled up in no time!

Try these other fruity treats:

  • Gluten-Free Peach Cobbler
  • Skillet Blueberry Crisp For Two
  • Raspberry Mug Cake
  • Blackberry Muffins
  • Bakery-Style Blueberry Muffins
  • Strawberry Quick Bread

 

So tell me:

+ What's your favorite way to use summer berries?

———————————————-

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Reader Interactions

Comments

  1. Audrey

    August 10, 2020 at 6:39 am

    These bars were awesome! I loved how I had all the ingredients on hand, very quick!

    ★★★★★

    Reply
    • Rebecca @ Strength and Sunshine

      August 10, 2020 at 7:16 am

      So simple and delicious!

      Reply
  2. Megan

    August 07, 2020 at 7:53 pm

    This recipe looks incredible, and your photos are so amazing that I think I could eat one right from my screen! My family would love this recipe, so I'm going to give it a try! Thank you for sharing.

    Reply
    • Rebecca @ Strength and Sunshine

      August 08, 2020 at 7:52 am

      Awesome! Let me know what everyone thinks!

      Reply
  3. PearPerson

    August 06, 2020 at 7:34 am

    Damn, this looks delicious. I'm a vegetarian but I like to bake without eggs. Is it okay to use normal normal butter and such but with flax as an egg substitute?

    Reply
    • Rebecca @ Strength and Sunshine

      August 06, 2020 at 7:36 am

      No, and I've never used eggs in my recipes (or life) as this is a 100% egg-free blog and always has been.

      Reply
  4. Elena Wiggins

    August 05, 2020 at 11:58 am

    Do you think coconut oil would be a good substitute for the vegan/soy free butter? Where do you purchase your vegan/soy free butter?

    Reply
    • Rebecca @ Strength and Sunshine

      August 05, 2020 at 1:36 pm

      I like Melt Organic best. You can try solid refined coconut oil, let me know!

      Reply
  5. Stephanie

    August 03, 2020 at 5:37 pm

    These look absolutely phenomenal! I really love just about anything with blackberry in it, and the concept of doing something gluten free and vegan is super cool! I'll have to test them out for myself sometime soon.

    Reply
    • Rebecca @ Strength and Sunshine

      August 04, 2020 at 6:48 am

      They are such a great berry for baking when you're bored of blueberries!

      Reply
  6. Melanie

    August 03, 2020 at 12:22 pm

    Blackberries are the best and this looks DELICIOUS!! Can't wait to try!

    Reply
    • Rebecca @ Strength and Sunshine

      August 03, 2020 at 5:31 pm

      They are! So great on their own, but AMAZING in some treats too!

      Reply
  7. Josie

    August 03, 2020 at 11:30 am

    I am always looking for ways to eat healthier desserts and live well. This looks like a great recipe to try out. Thank you for sharing - Josie xxx

    Reply
    • Rebecca @ Strength and Sunshine

      August 03, 2020 at 5:31 pm

      These are amazing! You'll love them!

      Reply
  8. Lidia Y De La Cruz

    August 03, 2020 at 8:31 am

    I'm a huge fan of easy and simple vegan recipes that are grab and goes for a busy morning or just day. Thank you! Adding to my list to make this week

    Reply
    • Rebecca @ Strength and Sunshine

      August 03, 2020 at 5:30 pm

      Yes! These are perfect for a grab-and-go bite!

      Reply
  9. Hailey

    August 03, 2020 at 8:10 am

    Omg..i am drooling. These seriously look delicious!

    Reply
    • Rebecca @ Strength and Sunshine

      August 03, 2020 at 5:29 pm

      Anything with those summer berries!

      Reply

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Hey there, welcome to Strength and Sunshine! I’m Rebecca and I'm so glad you're here! This is your go-to destination for delicious, fun, and (mostly) healthy gluten-free and allergy-free recipes, tips & tricks, advice, as well as celiac and food allergy coaching services! More about me



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