Mary Berry Recipes

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Ah, rhubarb crumble! Just the mention of it brings a smile to my face and conjures up memories of spring and early summer. There’s something so utterly charming and comforting about this British classic, isn't there? It’s a dish that truly celebrates the changing seasons, making the most of those beautiful, vibrant rhubarb stalks as they emerge from the garden.

For generations, families have gathered around a warm rhubarb crumble, its sweet-tart aroma filling the kitchen. It’s a recipe that has stood the test of time for a very good reason: it's simply delicious. My version keeps things beautifully straightforward, ensuring that even a novice baker can achieve a truly spectacular result, a dessert that truly sings with flavour and texture.

The joy of a crumble lies in its simplicity – that wonderful contrast between the soft, yielding fruit and the crisp, golden, buttery topping. This recipe, dear friends, is a celebration of those simple pleasures. It’s a dish that warms the heart and soul, perfect for a cozy evening or a lovely Sunday lunch. Let's get baking!

Why You'll Love This Recipe

Uses fresh, seasonal rhubarb for the best flavour and a lovely tartness.
Features a perfectly balanced sweet-tart filling that isn't overly sugary, allowing the rhubarb to shine.
The crumble topping is wonderfully crisp and buttery, providing a delightful texture contrast to the soft fruit.

Ingredients

For the Filling:
600g (approx. 1 lb 5 oz) rhubarb, trimmed and cut into 2-3 cm (1-inch) pieces
100g (½ cup) caster sugar (superfine sugar), or to taste
2 tbsp water
1 tsp cornflour (cornstarch) (optional, for thicker sauce)
For the Crumble Topping:
200g (1 ½ cups) plain flour (all-purpose flour)
100g (½ cup) unsalted butter, chilled and diced
100g (½ cup) caster sugar (superfine sugar)
50g (½ cup) rolled oats (optional, for extra crunch)

Equipment Needed

Medium saucepan • Large mixing bowl • 2-litre (approx. 8-inch) ovenproof dish • Baking tray • Measuring cups and spoons • Spatula or wooden spoon

Step-by-Step Instructions

Prepare the Rhubarb: Preheat your oven to 180°C (160°C fan/350°F/Gas Mark 4). Place the trimmed rhubarb pieces into a medium saucepan. Add the caster sugar and water. If using, mix the cornflour with a tablespoon of cold water to form a slurry, then add to the rhubarb.
Cook the Rhubarb: Gently cook the rhubarb over a medium heat for 5-8 minutes, stirring occasionally, until it has softened slightly but still holds its shape. You don't want it to be mushy at this stage. Taste and adjust sugar if necessary; some rhubarb can be very tart. Pour the rhubarb mixture into a 2-litre (approx. 8-inch) ovenproof dish.
Make the Crumble Topping: In a large mixing bowl, rub the plain flour and chilled, diced butter together with your fingertips until the mixture resembles fine breadcrumbs. This can also be done quickly in a food processor, but I do enjoy the hands-on approach!
Add Sugar and Oats: Stir in the caster sugar and rolled oats (if using) into the breadcrumb mixture. Give it a good mix to ensure everything is evenly distributed.
Assemble the Crumble: Sprinkle the crumble topping evenly over the cooked rhubarb in the dish, ensuring the fruit is completely covered. Don't press it down too firmly; you want that lovely, light texture.
Bake: Place the dish on a baking tray (to catch any bubbling over, just in case) and bake in the preheated oven for 30-40 minutes, or until the topping is beautifully golden brown and crunchy, and the fruit filling is bubbling gently around the edges.
Serve: Allow the crumble to stand for a few minutes before serving. It's sheer perfection served warm with a generous dollop of custard, cream, or a scoop of vanilla ice cream. Absolutely divine!

Perfect Substitutions

Plain flour: For a gluten-free option, use a good quality gluten-free plain flour blend. You might need a tiny bit more butter or a splash of water to bring the crumble together.
Caster sugar: Granulated sugar can be used, though caster sugar dissolves a little more easily. For a richer, deeper flavour in the topping, you could use light brown sugar.
Butter: For a dairy-free version, use a good quality plant-based butter alternative.
Rhubarb: If rhubarb isn't in season, you could use apples, berries, or a mix of fruits, adjusting the sugar to taste.

Serving Suggestions

This glorious Rhubarb Crumble is simply heavenly served warm. My absolute favourite pairing is with a silky, homemade vanilla custard, but it's equally delightful with a generous pour of double cream or a scoop of good quality vanilla bean ice cream. For a slightly lighter touch, a dollop of crème fraîche offers a lovely tang. If you enjoyed this, you might also love our Classic Carrot Tray Bake and Classic Golden Cheese Straws.

How to Store \u0026 Reheat

Leftover Rhubarb Crumble can be stored, covered, in the refrigerator for up to 3 days. To reheat, you can warm individual portions in the microwave, though the crumble topping might lose some of its crispness. For best results, reheat the entire crumble (if still in the dish) in a moderate oven (160°C/325°F) for 15-20 minutes until piping hot and the topping is crisp again. You can also freeze an unbaked crumble; simply cover tightly and bake from frozen, adding an extra 20-30 minutes to the baking time.

Mary's Secrets to Success

My dear bakers, for a truly exceptional Rhubarb Crumble, remember these little secrets! Firstly, don't overcook your rhubarb in the pan; you want it just tender, not mushy, as it will continue to cook in the oven. Secondly, when making your crumble topping, use really cold butter and work it quickly with your fingertips or a food processor to achieve that lovely 'breadcrumb' texture without melting the butter too much. This ensures a light, crisp result. And finally, serve it warm – it's an absolute must for that comforting, homely feel. Pure joy!

Frequently Asked Questions

My rhubarb is very tart, what should I do?

Rhubarb can vary greatly in tartness! Always taste your cooked rhubarb filling before adding the crumble topping. You can easily stir in an extra tablespoon or two of sugar at that stage if it's too tart for your liking. Some people also like to add a little orange zest to balance the flavour.

Can I make this crumble ahead of time?

Absolutely! You can prepare the rhubarb filling and the crumble topping separately, storing them in the refrigerator for up to 24 hours. Assemble and bake just before serving for the freshest, crispiest result. You can also assemble the entire crumble and refrigerate it for a few hours before baking.

How do I get a really crisp crumble topping?

The key to a wonderfully crisp topping is not to overwork the butter and flour mixture, ensuring it remains crumbly and light. Also, don't press it down too firmly onto the fruit. Baking it at the right temperature until golden brown is crucial, and adding a handful of oats can also contribute to that lovely crunch.

Can I add other fruits to the rhubarb?

Oh, certainly! Rhubarb pairs beautifully with other fruits. Strawberries are a classic partner, as are apples or raspberries. Just be mindful of the sweetness of the added fruit and adjust the sugar in the filling accordingly.

Why is my crumble topping soggy?

A soggy topping can often be due to insufficient baking time, too much moisture from the fruit, or pressing the topping down too firmly. Ensure the fruit isn't overly wet before adding the crumble, bake until truly golden and bubbling, and remember not to compact the topping. A little cornflour in the fruit can also help absorb excess liquid.