Rhubarb and Blackberry Crumble: Sweet, Sharp & Perfectly Balanced

Rhubarb and blackberry crumble is a classic British dessert that combines the sharp tang of rhubarb with the deep sweetness of blackberries, finished with a golden, buttery crumble topping. The two fruits complement each other beautifully, creating a well-balanced, comforting pudding.

This guide explains how to make rhubarb and blackberry crumble, with tips for great flavour and texture

⭐ Recommended Products — 🌱 Rhubarb & Growing Essentials

Rhubarb is a hardy, productive perennial that’s great for desserts, compotes, and early spring harvests. These essentials will help you grow it successfully and enjoy its harvest year after year.

• Rhubarb Crowns / Plants
Established rhubarb crowns are the easiest way to start — strong plants ready to go in the ground or large containers. Look for reliable varieties like Victoria or Crimson King.
👉 Click here to see top options

• Rhubarb Forcers
Special covers used in early spring to ‘force’ tender, pale stems sooner than usual — perfect if you want early harvests and sweeter stalks.
👉 Click here to see top options

• Rhubarb Seeds & Starter Kits
If you prefer growing from seed, seed packs with quality varieties give you a head start — ideal for sowing under cover before transplanting later.
👉 Click here to see top options

• Garden Compost / Soil Improver for Rhubarb
Rich, well-drained compost or well-rotted manure helps rhubarb establish strong roots and produce big, healthy stems year after year.
👉 Click here to see top options

• Rhubarb Growing Guide & Plant Care Book
A helpful reference on planting, forcing, feeding, and harvesting — great for beginners or anyone wanting bigger yields.
👉 Click here to see top options

🍓 What Is Rhubarb and Blackberry Crumble?

Rhubarb and blackberry crumble is a variation of traditional fruit crumble, made by:

• Combining rhubarb and blackberries with sugar
• Topping the fruit with a crumbly mixture of flour, butter, and sugar
• Baking until bubbling and golden

It works well with both fresh and frozen blackberries.

🧈 Ingredients for Rhubarb and Blackberry Crumble

Fruit Filling

• Fresh rhubarb stalks
• Blackberries (fresh or frozen)
• Caster or granulated sugar
• Cornflour (optional, for thickening)

Crumble Topping

• Plain flour
• Unsalted butter, cold and cubed
• Sugar (caster, granulated, or light brown)

Optional additions:

• Rolled oats
• Ground almonds
• Cinnamon or ginger

🥣 How to Make Rhubarb and Blackberry Crumble

1️⃣ Prepare the Fruit

• Wash and trim the rhubarb
• Cut into 3–4cm (1–1½ inch) pieces
• Place in an ovenproof dish
• Add the blackberries
• Sprinkle with sugar and cornflour (if using)
• Toss gently to coat

2️⃣ Make the Crumble Topping

• Put the flour into a bowl
• Rub in the cold butter using your fingertips until breadcrumb-like
• Stir in the sugar and any optional extras

The mixture should stay loose and crumbly.

3️⃣ Assemble

• Spoon the crumble topping evenly over the fruit
• Do not press it down

This helps the topping bake crisp and golden.

4️⃣ Bake

• Bake at 190°C (170°C fan)
• For 35–45 minutes, until the topping is golden and the fruit is bubbling

If the topping browns too quickly, cover loosely with foil.

5️⃣ Rest and Serve

• Leave to stand for 5–10 minutes
• Serve warm

🍮 What to Serve with Rhubarb and Blackberry Crumble

This crumble is especially good with:

• Hot custard
• Pouring cream
• Vanilla ice cream

The creamy accompaniment balances the sharp and sweet fruit.

🔥 Tips for the Best Rhubarb and Blackberry Crumble

• Use more rhubarb than blackberry to keep the flavour balanced
• Add cornflour if the fruit is very juicy
• Don’t overwork the crumble topping
• Keep butter cold for the best texture
• Allow the crumble to rest before serving

🌿 Easy Variations

• Rhubarb, blackberry and apple crumble – add sliced apple
• Oaty crumble – add rolled oats to the topping
• Almond crumble – add ground or flaked almonds
• Spiced crumble – add cinnamon or ginger

🌿 Final Thoughts

Rhubarb and blackberry crumble is a comforting, well-balanced dessert that makes the most of two classic fruits. Easy to prepare and full of flavour, it’s a reliable recipe that works for any season.

A timeless crumble worth baking.