Best Mixed Berry Crumble Recipe (Fresh or Frozen Berries)

  

If you’re looking for a simple, comforting dessert that celebrates the very best of late‑summer fruit, this Mixed Berry Crumble is the perfect choice. Made with a colourful blend of berries and topped with a buttery, golden crumble, it’s a dessert that’s both easy to prepare and irresistibly delicious. 

Whether you use fresh berries at their peak or frozen ones from your freezer stash, this crumble bakes into a bubbling, jammy filling with a crisp, nubbly topping that feels like pure home‑baked comfort. Served warm with cream, custard, or ice cream, it’s a timeless treat that fits beautifully into any day of the week — simple ingredients, big flavour, and all the cozy charm of a classic fruit crumble.

 This is the perfect dessert for this time of year.   Late summer.   We are just getting to the end of the strawberries and the Blueberries and raspberries are at their best.   Let's get ready to crumble!!

I actually used frozen blueberries and strawberries for this.  I have frozen blueberries left from last year, and I wasn't able to get out and get any strawberries. I had some of those in the freezer as well. So what I did was I just gently mixed them with fresh raspberries and put them into the oven for about 10 minutes before I added the remaining ingredients. You could also add blackberries if you wish. I think cherries would also be quite wonderful.

It worked beautifully.   The berries were perfectly thawed and ready for me to sprinkle over the white chocolate and the buttery crumble mixture.  The white chocolate perfectly sweetens the fruit so you need no other sugar in the filling.   It's a delightful mix of sweet and tart.

The topping has just the right amount of buttery and crispness . . .  part of it sinks down into the fruit thickening the juices.  It's just delightful.   Especially when served up with dollops of cream.   All that rich cream melting down into the fruit and buttery crumble.  This was moreishly scrumptious.  We are in love.

 

🍓INGREDIENTS NEEDED

TO MAKE

LATE SUMMER MIXED BERRY CRUMBLE🍓

Admittedly white chocolate is a bit of an unusual ingredient for a dessert like this, but trust me when I say it sweetens the fruit beautifully. No additional sugar is needed.

For the fruit filling:

• 2 cups (300g) of strawberries, washed and hulled (cut in half if large)
• 2 cups (200g) fresh blueberries
• 2 cups (200g) fresh raspberries
• 1/2 cup (100g) of good white chocolate, broken into bits

For the crumble topping:

• 2 cups (240g) all-purpose plain flour
• 1/2 cup+ 2 TBS (140g) of chilled butter, cut into bits
• 1/3 cup (80g) sugar

 

🍓NOTES ON INGREDIENTS🍓

 

• Strawberries, Blueberries & Raspberries A beautiful trio of late‑summer berries. You mention that blueberries and raspberries are at their best this time of year, while strawberries are finishing their season . Frozen berries work wonderfully too. So you can really make this crumble any time of the year.

• Optional Blackberries You note that blackberries can be added if you have them — they blend beautifully with the other berries and deepen the flavour and colour of the crumble .

• White Chocolate This is the secret ingredient that makes your crumble special. Instead of adding sugar to the fruit, you scatter bits of good white chocolate over the berries. It melts into the juices, sweetening the fruit naturally and creating a lovely balance of sweet and tart flavours .

• Plain Flour The base of your crumble topping. It helps create that classic crumb texture — tender, crisp, and golden once baked.

• Butter Chilled butter is rubbed into the flour and sugar until the mixture resembles dry breadcrumbs . This is what gives the topping its buttery richness and irresistible crispness.

• Sugar A modest amount of sugar in the topping adds sweetness and helps the crumble brown beautifully. Since the fruit is sweetened with white chocolate, no extra sugar is needed in the filling itself.

 

🍓HOW TO MAKE LATE SUMMER MIXED BERRY CRUMBLE🍓

A fruit crumble is probably one of the more easier desserts to make, and this one is especially simple.

1. Preheat the oven to 400*F/ 200*C/gas mark 6. (This is a regular oven, not a fan oven. If using a fan oven you will need to reduce the temperature by about 20 degrees.)
2. Butter a six cup deep casserole dish. Gently mix the berries and pour them into the dish. Scatter the white chocolate bits over top. (Don't be too hard on the berries so that you can keep them whole without breaking them up.)
3. Measure the flour and sugar into a bowl. Drop in the butter. (Make sure the butter is quite cold.)
4. Rub the butter into the dry mixture with your finger tips until the mixture resembles dry bread crumbs. Sprinkle this mixture evenly over top of the fruit. (Use the tips of your fingers in a snapping motion. The crumb topping should come out fairly fine without a lot of big lumps of butter in it.)
5. Bake for 35 to 40 minutes, until the crumble topping is golden brown and the fruit is bubbling up.
6. Serve warm with or without lashings of cream! (Or ice cream, clotted cream, pouring cream or even warm custard.)

 

🍓HINTS & TIPS FOR SUCCESS🍓

• Give frozen berries a head start in the oven If using frozen strawberries or blueberries, pop them into the oven for about 10 minutes before adding the white chocolate and crumble topping. This ensures they thaw evenly and bake up beautifully.

• Mix berries gently to avoid bruising The recipe calls for gently mixing the berries before placing them in the dish — this keeps them whole and prevents them from turning mushy.

• Use good‑quality white chocolate The white chocolate is the only sweetness in the filling, so choose a good bar for the best flavour. It melts into the fruit and creates a perfect sweet‑tart balance.

• Don’t skip the buttery crumble texture test Rub the butter into the flour and sugar until the mixture resembles dry breadcrumbs — this ensures a crisp, golden topping.

• Bake until the topping is deeply golden The crumble is ready when the top is golden brown and the fruit is bubbling up around the edges. This guarantees the topping is crisp and the juices have thickened.

• Serve warm for maximum deliciousness Warm crumble lets the fruit juices mingle with the buttery topping — especially if you add clotted cream, which melts into every nook and cranny.

• Add blackberries for extra depth Blackberries are a lovely optional addition if you have them.

• Use a deep casserole dish A six‑cup deep dish gives the crumble room to bubble without overflowing.

 

 

 

 

🍓FREQUENTLY ASKED QUESTIONS🍓

CAN I USE FROZEN BERRIES INSTEAD OF FRESH?

Yes — frozen berries work beautifully. I used frozen strawberries and blueberries yourself and simply gave them a 10‑minute head start in the oven before adding the crumble topping.

WHAT KINDS OF BERRIES WORK BEST IN THIS CRUMBLE?

Strawberries, blueberries, and raspberries are what I used, but blackberries would be lovely too. You could even add cherries.

DON'T I NEED TO ADD SUGAR TO THE FRUIT FILLING?

No extra sugar is needed — the white chocolate sweetens the fruit perfectly and creates a gorgeous balance of sweet and tart.

WHAT MAKES THE CRUMBLE TOPPING SO GOOD?

It’s buttery, crisp, and just the right texture. Part of it sinks into the fruit as it bakes, thickening the juices and making every spoonful delicious. 

HOW SHOULD I SERVE THIS CRUMBLE?

 Warm, with clotted cream if you want the full indulgent experience — you describe it as “oh so moreishly scrumptious. Vanilla ice cream, pouring cream and custard sauce also go very well.

CAN THIS BE MADE AHEAD OF TIME?

Absolutely. You can easily reheat this dessert. Crumbles reheat very well. Simply pop into a medium oven and reheat until heated through. The simplicity of this recipe also makes it easy to prepare the topping ahead of time and assemble the dessert just before baking.

 

🍓A FEW OTHER CRUMBLES FOR YOU TO ENJOY🍓

Who doesn't enjoy a good crumble!  They are one of the most delicious and homiest desserts you can make. Here are a few more favorites! 

SKILLET APPLE CRUMBLE -  Comfort in its purest form — tender cinnamon‑kissed apples caramelized in butter, bubbling beneath a golden, nutty oat topping that bakes up crisp and irresistibly fragrant. It’s a small‑batch treat made right in an 8‑inch skillet, perfect for two, and absolutely heavenly served warm with cream, custard, or a scoop of vanilla ice cream. Simple ingredients, big cozy flavour — a real mood‑lifting dessert for any day.

 

DOUBLE CRUSTED BLUEBERRY OAT CRUMBLE - A crumble lover’s dream — sweet, jammy blueberries tucked between two layers of buttery, cinnamon‑kissed oat crumble. The bottom bakes into a golden crust, the top turns crisp and nubbly, and together they create the most irresistible contrast of textures. Served warm with ice cream, cream, or custard, it’s pure blueberry bliss in every bite.

  

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Yield: 4 - 6 servings

Author: Marie Rayner

Late Summer Mixed Berry Crumble

Prep time: 10 MinCook time: 40 MinTotal time: 50 Min

A delicious way to use up the last of the summer berries. I use strawberries, blueberries and raspberries. Any sweetness comes from the delicious addition of some white chocolate. The buttery crumbs are it's crowning glory! 

Ingredients

For the fruit filling:

• 2 cups (300g) of strawberries, washed and hulled (cut in half if large)
• 2 cups (200g) fresh blueberries
• 2 cups (200g) fresh raspberries
• 1/2 cup (100g) of good white chocolate, broken into bits

For the crumble topping:

• 2 cups (240g) all-purpose plain flour
• 1/2 cup+ 2 TBS (140g) of chilled butter, cut into bits
• 1/3 cup (80g) sugar

Instructions

1. Preheat the oven to 400*F/ 200*C/gas mark 6.
2. Butter a six cup deep casserole dish. Gently mix the berries and pour them into the dish. Scatter the white chocolate bits over top.
3. Measure the flour and sugar into a bowl. Drop in the butter.
4. Rub the butter into the dry mixture with your finger tips until the mixture resembles dry bread crumbs. Sprinkle this mixture evenly over top of the fruit.
5. Bake for 35 to 40 minutes, until the crumble topping is golden brown and the fruit is bubbling up.
6. Serve warm with or without lashings of cream!

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