James Martin Apple Crumble Cake

Apple crumble isn’t just dessert — it’s a memory. It’s rainy Sunday afternoons, steam on the windows, and your nan pulling a bubbling dish out of the oven with hands that somehow never needed oven mitts. James Martin’s version of apple crumble, with tart Bramley apples, juicy blackberries, and that golden, cinnamon-kissed topping, hits all those warm, fuzzy buttons.

I grew up with some variation of this on nearly every family table: slightly burnt edges if Dad made it, a full jug of homemade custard if Mum did. And now? I make this when the world feels a bit much — when I need grounding, or just a reason to make the kitchen smell like home. The recipe’s simple, forgiving, and pure comfort — the kind of thing that doesn’t care if your crumble’s a bit lumpy or your custard’s got a swirl.

Ingredients List

For the fruit filling:

• 1kg Bramley apples, peeled, cored, and sliced
  (Tart, sharp, and softens beautifully when baked.)
• 300g blackberries
  (They melt into the apples and add that deep purple richness.)
• 1 tsp ground cinnamon
  (Warmth. Essential. Don’t skip it.)

For the crumble topping:

• 250g plain flour
• 250g Demerara sugar
  (For that gorgeous caramel crunch.)
• 250g butter, diced and chilled
  (Straight from the fridge. Don’t overmix it — crumbly is good.)

For the custard:

• 1 vanilla bean, split and scraped
  (Or a splash of good vanilla extract if the bean’s a bit much today.)
• 8 egg yolks
  (Yes, eight. It’s luxurious. Worth it.)
• 75g caster sugar
• 300ml milk
• 300ml double cream

How to Make It

1. Preheat your oven to 180°C (fan 160°C). Find a good deep baking dish — ceramic or glass works best. You want one that’ll hold a bit of bubbling chaos.
2. Make the crumble topping.
   Rub the cold diced butter into the flour using just your fingertips. Stop when it looks like chunky breadcrumbs — some bits bigger than others is fine. Stir in the sugar.
   (I do this in a big mixing bowl and always end up with flour on my nose.)
3. Toss the apples and blackberries into your baking dish.
   Sprinkle with cinnamon and a little sugar if your apples are very tart. No need to precook — they’ll soften perfectly in the oven.
4. Scatter the crumble generously over the fruit.
   Don’t pack it down. Let it fall naturally — uneven is charming.
5. Bake for 30–35 minutes.
   You’re looking for a golden, crunchy top and fruit juices bubbling up at the sides like lava.
6. While that bakes, make your custard (optional but highly encouraged).
   Heat the milk, cream, and vanilla bean in a saucepan until it just starts to bubble.
   Meanwhile, whisk the egg yolks and sugar together until pale.
   Slowly pour the hot milk mix into the yolks, whisking constantly. Return to the pan and stir until it thickens just enough to coat the back of a spoon.
   (Don’t walk away — I once turned mine into a sweet scrambled egg disaster.)
7. Let the crumble cool for 5–10 minutes before serving.
   Dollop on the custard. Or ice cream. Or double cream. Or all three. I’m not judging.

Common Mistakes

Why is my crumble topping soft, not crunchy?
You probably overmixed it or used butter that was too soft. Keep it cold and crumbly — and don’t press it down when topping.

Can I skip the cinnamon?
Technically yes, but you’d be missing out on that nostalgic warmth. Trust me.

Why is my fruit soggy or watery?
Bramleys do break down a lot — it’s normal. If you want a firmer texture, mix in a firmer eating apple like Granny Smith.

My custard split — what happened?
It got too hot. Keep it on low heat and stir constantly. If disaster strikes, a blender can sometimes rescue it.

Can I use frozen berries?
Yes! Just don’t thaw them first — use straight from frozen to avoid too much juice.

Storage and Reheating Tips

Fridge:
Cover leftovers and refrigerate for up to 3 days. The crumble topping softens a bit but it’s still delicious.

Freezer:
Freeze the baked crumble (once cooled) in portions. Wrap well and use within 3 months.

Reheating:

• Oven: 175°C for 15–20 mins, covered in foil. Remove foil last 5 mins for crunch.
• Microwave: One serving at a time. 1–2 mins on medium power.
• Skillet: My cheeky favourite. Reheat in a non-stick pan with a tiny knob of butter until sizzling.

What to Serve With It

• Homemade custard — Because it’s proper.
• Vanilla ice cream — Hot-cold contrast is magic.
• Whipped cream with a splash of brandy — For when you want to feel a little fancy.

Frequently Asked Questions

Can I make this in advance?
Yes. Assemble the whole thing (unbaked), cover, and chill for up to 24 hours. Bake fresh for best results.

Can I make it gluten-free?
Use a good plain gluten-free flour blend for the crumble. No other changes needed.

Can I add oats to the topping?
Absolutely. Replace about 50g of flour with rolled oats for extra texture.

What apples can I use besides Bramley?
Granny Smith, Braeburn, or a mix of tart and sweet apples. Just avoid super soft varieties like Red Delicious — they turn to mush.

Nutrition Facts

• Calories: 195.5 kcal
• Fat: 10.2g
• Saturated fat: 6.1g
• Carbs: 23.6g
• Sugar: 10.1g
• Protein: 2.8g
• Sodium: 51.2mg

Try More James Martin Recipes:

• James Martin Pear Tarte Tatin
• James Martin Madeira Cake
• James Martin Millionaires Shortbread