The taste of a British autumn

There is a moment, usually in the first week of October, when the evenings turn properly cold and the kitchen becomes the best room in the house. That is crumble weather. Fruit crumble is one of the great British puddings precisely because it is forgiving: it does not demand precision, it welcomes whatever the garden and the hedgerow have to offer, and it can be on the table in under an hour. The version below pairs sharp cooking apples with blackberries for a filling tart enough to cut through a buttery oat topping. Serve it warm, with custard thick enough to stand a spoon in.

Choose apples with backbone

Good crumble depends on good fruit, and the best fruit for the job is grown here. British orchards have been producing cookers for centuries, and the classic is the Bramley — large, green, irregularly shaped, with a brisk acidity that collapses into a fluffy purée when baked. Bramleys are harvested from late September into November, which is exactly when you want them.

Other varieties worth seeking out include Grenadier, an early cooker ready in August and September; Howgate Wonder, which holds its shape a little more; Lord Derby; and Annie Elizabeth, a late, sweet-sharp apple from Derbyshire. Many traditional orchards — small, unsprayed, often grazed by sheep or geese — were lost in the twentieth century, but community orchards and small growers have been quietly bringing them back. If you have a farmers' market nearby, ask which varieties are in season rather than reaching for a generic bag.

One note on cider apples: the bittersharp and bittersweet varieties grown across Herefordshire, Somerset and Devon are superb in a glass but far too tannic for a crumble. Keep those for drinking and use proper cookers here. Eating apples will work in a pinch, but you will need less sugar and the filling will be softer.

Blackberries from the hedgerow

The blackberry season runs from late August into October, and the best fruit is usually found on warm, sunny banks away from busy roads. Pick when the berries are black all over and come away with almost no tug — anything that resists is not ripe. Go out on a dry day, ideally before rain, and take a shallow container so the fruit does not crush under its own weight. If you get scratched, you are doing it properly.

Frozen blackberries are a perfectly good substitute, and there is no shame in them. Use them straight from the freezer; they will release more juice, so add the cornflour below.

The fruit base

You will need a shallow ovenproof dish with a capacity of roughly 1.5 to 2 litres. A wider dish gives more topping per spoonful, which is the whole point.

• 900g cooking apples, peeled, cored and cut into 2cm chunks
• 200g blackberries
• 60–80g caster sugar, depending on how sharp your apples are
• 1 tbsp lemon juice
• 1 tsp ground cinnamon, or a good pinch of mixed spice
• 1 tbsp cornflour, if your berries are very juicy

Toss the apples and blackberries with the sugar, lemon juice and spice, then tip into the dish. Level the surface gently — do not press it down, or the fruit will steam rather than bubble.

The oat topping and the bake

• 175g plain flour
• 100g cold unsalted butter, cut into cubes
• 75g porridge oats
• 75g demerara sugar
• A pinch of fine salt
• Optional: 25g flaked almonds or chopped hazelnuts

Heat the oven to 200°C (180°C fan, gas mark 6). Rub the butter into the flour with your fingertips until it looks like coarse breadcrumbs, then stir through the oats, sugar, salt and nuts if using. Stop as soon as it comes together — overworking makes a heavy topping. Scatter it over the fruit in loose, uneven clumps and do not press it flat.

Bake for 35 to 40 minutes, until the topping is deep golden and the juices are bubbling up around the edges. If it is browning too fast, cover loosely with foil. Let it stand for 10 minutes before serving; the filling will be molten straight from the oven and will set slightly as it rests.

Serve it, and pour something good

Custard is the traditional partner, made with whole milk and plenty of vanilla, but clotted cream or a scoop of vanilla ice cream all do the job admirably. If you want to lean into the orchard theme, a glass of dry, still cider alongside is a fine match — the kind made from proper cider apples, fermented slowly and tasting of the orchard rather than of sugar. Cider culture in the West Country and Herefordshire runs deep, with wassailing traditions each January to wake the trees for the year ahead. A crumble and a glass of cider is that same culture, served at the kitchen table.

Any leftovers will keep for two days in the fridge and reheat well, covered, at 160°C. The topping will lose a little crunch, which is a small price to pay for a second helping on a cold Tuesday.