Juicy, jammy berries tucked under a golden oat and almond crumble. This easy mixed berry crumble is fresh, bright, just sweet enough, and made for summer entertaining.
There are some desserts that require precision, planning, and a sink full of dishes.
This is not one of them.
I first made this mixed berry crumble before heading to a friend’s house for a BBQ. I wanted something fruity and fresh that I could throw together quickly, make ahead, and easily adapt for a friend who was limiting added sugar.
I used the bag of frozen mixed berries I almost always have tucked into my freezer, added a simple oat and almond crumble, and swapped the usual sweeteners for zero sugar alternatives.
The dish came home completely empty.
Always a good sign.
This recipe was originally inspired by a berry crisp I saw on Cookie and Kate. The addition of Greek yogurt to the crumble topping caught my attention because, admittedly, it sounded a little strange. But it works beautifully. The slight tang balances the sweetness of the fruit while helping create a tender, golden topping.
And while I love this with mixed berries, consider the recipe more of a formula than a rule. Peaches, plums, cherries, apples, pears, or a combination would all be delicious.
A Better for You Berry Crumble
I love dessert, and I have zero interest in turning it into something joyless just for the sake of making it “healthy.”
Instead, this crumble uses ingredients that bring both flavor and a little more nourishment to the table.
Berries provide plenty of natural sweetness along with fiber and colorful plant compounds. Chia seeds help thicken all those beautiful berry juices while adding even more fiber. Rolled oats, almond flour, sliced almonds, and coconut give the topping texture, healthy fats, and staying power.
And then there’s the Greek yogurt. It adds moisture and a subtle tang to the topping without requiring loads of butter.
You can make this with maple syrup and coconut sugar, or use your preferred zero sugar replacements. Both versions work, so choose the one that makes the most sense for you and the people you’re feeding.
Because sometimes you want maple syrup.
Sometimes you want less added sugar.
There is room for both.
What Makes This Mixed Berry Crumble So Good?
It’s all about contrast.
The berries become warm, juicy, and almost jammy as they bake. Lemon keeps them bright, vanilla brings out their sweetness, and the chia and arrowroot lightly thicken the juices so you get a luscious filling rather than berry soup.
Then there’s that topping.
Oats give it chew, almonds bring crunch, coconut adds a little richness, and the yogurt creates tender clusters that turn golden around the edges.
Serve it warm with something cold and creamy on top and it is very, very hard to stop at one spoonful.
Ingredient Notes & Easy Swaps
Mixed berries: Fresh or frozen both work beautifully. I use a frozen blend of strawberries, blueberries, raspberries, and blackberries. If using frozen berries, thaw them first and drain off any excessive liquid.
Maple syrup: I love the flavor of maple syrup with berries. For a lower sugar version, replace it with a liquid or granulated 1:1 zero sugar sweetener suitable for baking. Check your particular product for substitution ratios.
Coconut sugar: Adds a slightly caramelized flavor to the crumble. Regular brown sugar works too, or use a 1:1 granulated monk fruit, allulose, or other zero sugar baking blend.
Arrowroot or tapioca flour: This helps thicken the juices released by the berries as they cook. Either works.
Chia seeds: They provide additional thickening while adding fiber. You will barely notice they are there once everything has baked.
Gluten free rolled oats: If you need the recipe to be gluten free, make sure your oats are certified gluten free.
Almond flour: Adds richness to the topping without needing a large amount of butter. I prefer finely ground almond flour rather than almond meal here.
Sliced almonds: Pecans, walnuts, pistachios, or another chopped nut would also be delicious.
Greek yogurt: Use a thick, unsweetened Greek yogurt. For dairy free, use a thick unsweetened coconut or nut based yogurt.
Butter: Butter or ghee both work well. For a dairy free or vegan version, use melted coconut oil.
Tips for the Best Berry Crumble
Don’t skip the thickener. Berries release a lot of juice as they cook. The arrowroot and chia help turn those juices into a beautiful, spoonable filling.
Keep some texture in the topping. Once you add the wet ingredients, mix just until everything is moistened. You want little clusters rather than a completely uniform mixture.
Use your hands. Sprinkle the topping over the berries with your fingers, gently breaking it into different sized pieces. Those irregular bits create the best crispy edges.
Look for bubbles. Your crumble is ready when the fruit is bubbling around the edges and the topping is lightly golden.
Let it rest. This one matters. Straight out of the oven, the filling will be very loose. Give it about 10 to 15 minutes and those berry juices will settle and thicken.
Make It Ahead
This is such a good dessert for entertaining because almost everything can be done before people arrive.
You can assemble the entire crumble several hours ahead, cover it, and refrigerate until you’re ready to bake. If baking it straight from the fridge, it may need a few additional minutes in the oven.
You can also bake it completely ahead of time and serve it at room temperature.
Personally, I love it slightly warm so that whatever creamy thing you put on top starts to melt into all those berries.
What Else Can I Use Instead of Berries?
Once you know the basic recipe, play with it.
Try:
Peaches with a little cinnamon
Plums with vanilla
Cherries with almond extract
Apples or pears with cinnamon and cardamom
Strawberries and rhubarb
Peach and blueberry
Apple and blackberry
For firmer fruits like apples and pears, slice them fairly thinly so they have enough time to soften while the topping cooks.
How to Serve Mixed Berry Crumble
Warm berry crumble and vanilla ice cream will always be hard to beat.
For something lighter, add a generous spoonful of thick Greek yogurt or vanilla yogurt. Coconut yogurt is wonderful if you want to keep it dairy free.
For a summer dinner, I love placing the baking dish right in the middle of the table and letting everyone scoop their own.
It doesn’t need to look perfect. In fact, that bubbling, slightly messy spoonful of berries and crumble is part of its charm.
Storage
Store leftover mixed berry crumble covered in the refrigerator for up to 4 days.
Enjoy it cold, bring it to room temperature, or reheat individual portions gently in the microwave. To bring back some of the crispness in the topping, reheat it in a 350°F oven for about 10 minutes.
And yes, leftover berry crumble with a scoop of Greek yogurt makes a very good breakfast. I said what I said.
This is the kind of dessert I love most. Simple ingredients, loads of flavor, easy enough for an ordinary evening but special enough to put on the table when friends come over.
Make it with maple syrup and coconut sugar. Make it with zero sugar sweeteners. Change the fruit with the seasons.
Then put the whole dish on the table, add something creamy, and enjoy it together.
Berry Crumble
uicy, jammy berries tucked under a golden oat and almond crumble.
INGREDIENTS
- 5 cups fresh (washed) or frozen (thawed) berries of choice - I used a frozen mix that had blueberries, strawberries, blackberries, and raspberries.
- 1/4 cup maple syrup or a zero sugar replacement
- 1 Tbsp arrowroot flour or tapioca flour
- 1 Tbsp chia seeds
- 2 Tbsp lemon juice
- 1 tsp vanilla extract
- 3/4 cup gluten-free rolled oats
- 1/4 cup almond flour
- 2 Tbsp shredded coconut
- 1/4 cup sliced almonds (can sub with any chopped or slivered nuts)
- 4 Tbsp coconut sugar or zero sugar replacement
- 1/4 teaspoon salt
- 1 Tbsp melted butter or ghee (for dairy-free), or coconut oil (for vegan)
- 4 Tbsp Greek yogurt (can use coconut or nut-based yogurt for dairy-free)
INSTRUCTIONS
- Preheat the oven to 350°F/180°C.
- If using frozen berries, thaw them first and drain off any excessive liquid.
- Add the berries directly to a 9 x 9 inch baking dish. Add the maple syrup or zero sugar sweetener, arrowroot, chia seeds, lemon juice, and vanilla. Stir until the berries are evenly coated.
- In a separate mixing bowl, combine the rolled oats, almond flour, shredded coconut, sliced almonds, coconut sugar or zero sugar sweetener, and salt.
- Add the melted butter and Greek yogurt. Stir until the dry ingredients are evenly moistened and small clusters begin to form.
- Using your hands, scatter the crumble mixture evenly over the berry filling, gently breaking larger pieces apart with your fingers.
- Bake for 40 to 45 minutes, until the berry filling is bubbling around the edges and the crumble topping is golden.
- Let the crumble rest for at least 10 minutes before serving. This allows the berry filling to thicken as it cools slightly.
- Serve warm or at room temperature with vanilla ice cream, Greek yogurt, or your favorite dairy free alternative.
NOTES:
Estimated Nutritionals:
Using Maple & Coconut Sugar: Calories: 200 | Protein: 4g | Carbs 32
Using Zero calorie sweeteners: Calories: 150 | Protein 4g | Carbs 20g
Nutrition is an estimate and will vary depending on the berry blend, yogurt, and brands used. The zero sugar calculation assumes a zero calorie 1:1 sweetener. Some allulose, erythritol, and monk fruit blends may still list carbohydrates on the nutrition label, so the exact total carbohydrate and net carbohydrate values will vary by product.
