Triple Berry Crumble Bars (Gluten‑Free, Refined Sugar‑Free, Easy Summer Dessert)
These Triple Berry Crumble Bars are the ultimate gluten‑free summer dessert—bursting with juicy mixed berries, layered over a buttery shortbread‑style crust, and finished with a golden crumble topping.
Made with gluten‑free flour, pure maple syrup, and fresh or frozen berries, these bars are naturally refined sugar‑free, nut‑free, and easily dairy‑free.
Whether you’re prepping a patriotic dessert for Memorial Day, a backyard BBQ treat, or a simple make‑ahead snack for the week, these berry crumble bars deliver big flavor with minimal effort.
They slice beautifully, store well, and taste incredible warm, chilled, or topped with vanilla ice cream.
Looking for the PERFECT summer mocktail to compliment these bars? Try my naturally sweetened Sparkling Blueberry Lemonade, next!
These gluten‑free triple berry crumble bars are everything you love about a classic berry crisp—just in handheld bar form.
The base is a soft, buttery shortcake‑style crust made with gluten‑free measure‑for‑measure flour, pure maple syrup, and vanilla.
The filling is a juicy blend of mixed berries, arrowroot for thickening, and a splash of lemon juice to brighten every bite.
A layer of golden crumble bakes on top, giving you the perfect mix of soft, gooey, and crisp textures.
This recipe is refined sugar‑free, nut‑free, and easily dairy‑free, making it a great option for families, summer gatherings, and anyone looking for a healthier dessert that still tastes indulgent.
You can use fresh or frozen berries, and the bars slice cleanly after chilling—ideal for meal prep, lunchboxes, or serving a crowd.
Enjoy them plain, drizzle with peanut butter, or top with a scoop of vanilla ice cream for the ultimate berry dessert.
Why You’ll Love These Triple Berry Crumble Bars
- • Gluten‑free & refined sugar‑free — made with maple syrup and simple ingredients.
• Fresh or frozen berries work — perfect for year‑round baking.
• Nut‑free & dairy‑free optional — great for families with allergies.
• Easy to slice & store — the bars hold their shape beautifully after chilling.
• Perfect summer dessert — ideal for BBQs, holidays, and potlucks.
• Minimal prep time — just mix, layer, bake, and chill.
Serves: 20
Ingredients
- 3 cups Gluten-Free Measure for Measure Flour
- 1 Tbsp Arrowroot Flour
- 1/2 tsp Baking Powder
- 1/2 tsp Sea Salt
- 1/2 cup Butter, Unsalted, Or vegan butter
- 1/2 cup Pure Maple Syrup
- 1 tsp Pure Vanilla Extract
- 26 oz Mixed Berries, Fresh, Fresh or frozen
- 3 Tbsp Arrowroot Flour
- 3 Tbsp Pure Maple Syrup
- 2 Tbsp Lemon Juice
Process
- Preheat oven to 375 and line a 9×9 dish with parchment paper
- If using frozen berries allow to thaw slightly
- Melt & cool butter
- Whisk flour, baking powder, and salt together
- Add butter, syrup , and vanilla and use a fork to combine dough until crumbled
- Press 2/3 of that dough into the dish and use a silicone spatula to press down evenly. Poke a few holes in the crust, then bake for 10 min
- Meanwhile, add filling ingredients to a bowl and use a fork to slightly smash the mixture together
- Pour overtop crust, and sprinkle remaining crumble overtop
- Bake for an additional 35 min
- Allow to cool for 30min, then transfer to the fridge for at least 2 hours for smoother slicing
- Enjoy!
- Store in the fridge
FAQ
Can I use frozen berries?
Yes! Frozen berries work perfectly. Let them thaw slightly before mixing so the filling thickens evenly.
Can I make these dairy‑free?
Absolutely—swap the butter for your favorite vegan butter. The texture stays the same.
Can I use a different sweetener?
Maple syrup gives the best flavor and moisture, but honey can work in a pinch. Granulated sweeteners won’t provide the same texture.
How do I store the bars?
Store in the fridge for up to 5 days. They slice best when chilled and can be enjoyed cold or warmed slightly.
Can I freeze them?
Yes! Freeze sliced bars for up to 2 months. Thaw in the fridge overnight.
What size pan works best?
A 9×9 pan gives the perfect thickness and even baking.
If you make these Triple Berry Crumble Bars I’d love to hear your thoughts in the comments below! Or tag me on social media so I can see your creations!
Ingredients
Bars
- 3 cups Gluten-Free Measure for Measure Flour
- 1 Tbsp Arrowroot Flour
- 1/2 tsp Baking Powder
- 1/2 tsp Sea Salt
- 1/2 cup Butter Unsalted, Or vegan butter
- 1/2 cup Pure Maple Syrup
- 1 tsp Pure Vanilla Extract
Berry Filling
- 26 oz Mixed Berries Fresh, Fresh or frozen
- 3 Tbsp Arrowroot Flour
- 3 Tbsp Pure Maple Syrup
- 2 Tbsp Lemon Juice
Instructions
- Preheat oven to 375 and line a 9×9 dish with parchment paper
- If using frozen berries allow to thaw slightly
- Melt & cool butter
- Whisk flour, baking powder, and salt together
- Add butter, syrup , and vanilla and use a fork to combine dough until crumbled
- Press 2/3 of that dough into the dish and use a silicone spatula to press down evenly. Poke a few holes in the crust, then bake for 10 min
- Meanwhile, add filling ingredients to a bowl and use a fork to slightly smash the mixture together
- Pour overtop crust, and sprinkle remaining crumble overtop
- Bake for an additional 35 min
- Allow to cool for 30min, then transfer to the fridge for at least 2 hours for smoother slicing
- Enjoy!
- Store in the fridge
