This Easy Mixed Berry Crumble is a simple and classic berry dessert that everyone will love! Sweet, lightly spiced berries (fresh or frozen) are topped with a crunchy, buttery oatmeal topping.
This post was made in collaboration with LocknLock.

A Classic Berry Crumble Recipe
This delicious and easy to make dessert is a real crowd-pleaser! It is a simple recipe that is packed full of tasty berries and has a delicious crunchy crumble topping. This classic dessert is quick and easy to make using pantry staple ingredients. For this mixed berry crumble, fresh or frozen berries can be used and you can adapt the berries you use according to your preference.
I love to make a big batch of this mixed berry crumble and then freeze any leftovers for a sweet treat another day. You can also even make this easy berry crisp ahead of time and store it in the freezer for up to a month and then bake it whenever you're ready!
Why You Will Love This Recipe
- Full of flavor - Loads of berries, cinnamon, and rich brown suagr makes this recipe super tasty!
- A simple recipe - This mixed berry crumble can be made in just 10 minutes and is pretty much fool-proof!
- Delicious classic dessert - The combination of soft sweet fruit and rich crunchy topping is an absolute winner and never disappoints.
- Freezer friendly - This recipe freezes well and can be stored for up to 3 months in your freezer.
- A great make-ahead option - You can make this dessert ahead of time and bake when you are ready, and it will be just as delcious as if freshly made!
Another easy dessert recipe to try out is my Creamy Panna Cotta Tart!
How To Make Homemade Mixed Berry Crumble
Step-by-step Instructions:
- Prepare oven and baking dish. Preheat oven to 375F / 180C and grease a small baking dish.
- Make the berry filling. Place all the berries (fresh or frozen, either works well!) into the prepared baking dish. Sprinkle the sugar, cinnamon, and cornstarch over the berries. Use a wooden spoon to mix this all together and then set it aside. This will allow the berries to soften and start to release their juices.
- Make the crumble topping. In a large mixing bowl, combine the oats, brown sugar, flour, and salt. Once well combined, rub in the cold, cubed butter with your fingers until crumbly and well combined.
- Assemble. Evenly sprinkle the crumble topping over the prepared berry mixture.
- Bake. Place the berry crumble in the centre of your oven and bake for 35 - 40 minutes, or until the topping is golden brown.
- Serve. Leave the berry crisp to stand for 5 - 10 minutes before serving so that the filling can set and then dig in! Serve the cooled crumble on its own, or with ice cream or custard.
Tips & Tricks for Making This Mixed Berry Crisp Perfectly
- Make the berry crumble ahead of time: You can make the filling, topping, or the whole thing ahead of time. Just keep it covered and refrigerated and bake it whenever you are read - it can be stored in the fridge for up to 3 days or in the freezer for up to a month.
- Make recipe adaptions to suit your taste: The mixed berry filling can be made with any type of berry - so feel free to use whichever ones you prefer. You can also adapt the amount of sugar in the filling depending on your taste and the sweetness of your berries. The amount of spice can also be altered depending on your preference.
- Don’t leave out the cornstarch: The cornstarch in the berries mixture really helps to bring the whole filling together so that it isn’t runny. And if you don’t have any cornstarch, you can use flour instead.
- Allow the crisp to sit for a few minutes before serving. Like a lot of baked desserts, this berry crumble needs a few minutes of resting in order to cool and set properly once it comes out of the oven.
Berry Crumble FAQs
The main reason why your crumble will not have the right texture is if your butter is too soft. For the best crumble mix, make sure to use cold butter and then work quickly when you rub in the butter.
It is best to store berry crumble in an airtight container. You can then store the berry crumble in the refrigerator for up to five days or in the freezer for up to three months.
A crumble is ready when the fruit layer is bubbly and the crumble layer is crisp and golden brown in color.
I hope you love this Easy Mixed Berry Crumble recipe! If you give it a try let me know what you think of it over on Instagram.
Easy Mixed Berry Crumble
This Easy Mixed Berry Crumble is a simple and classic berry dessert that everyone will love! Sweet, lightly spiced berries (fresh or frozen) are topped with a crunchy, buttery oatmeal topping.
Ingredients
Berry Filling
- 2 cups mixed berries
- 2 tablespoon granulated sugar
- ½ tablespoon cornstarch
- ½ teaspoon ground cinnamon
Oatmeal Topping
- ½ cup rolled oats
- ½ cup all-purpose flour
- ¼ cup brown sugar
- pinch of salt
- ¼ cup butter, cold and cubed
Instructions
- Prepare oven and baking dish. Preheat the oven to 375F / 180C and grease a small baking dish.
- Make the berry filling. Place all the berries (fresh or frozen, either works well!) into the prepared baking dish. Sprinkle the sugar, cinnamon, and cornstarch over the berries. Use a wooden spoon to mix this all together and then set it aside. This will allow the berries to soften and start to release their juices.
- Make the crumble topping. In a large mixing bowl, combine the oats, brown sugar, flour, and salt. Once well combined, rub in the cold, cubed butter with your fingers until crumbly and well combined.
- Assemble. Evenly sprinkle the crumble topping over the prepared berry mixture.
- Bake. Place the berry crumble in the centre of your oven and bake for 35 - 40 minutes, or until the topping is golden brown.
- Serve. Leave the berry crisp to stand for 5 - 10 minutes before serving so that the filling can set and then dig in! Serve the cooled crumble on its own, or with ice cream or custard.
Notes
Alterations:
Storing:
The crumble can be stored in an airtight container in the fridge for up to five days or in the freezer for up to three months.
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