Caponata

Sicilian, sweet and sour, and eaten at room temperature or cold rather than hot. The defining move is that each component is cooked on its own and they meet only at the end, so the aubergine stays aubergine and the celery stays crisp.

The sweet and sour is an agrodolce: sugar and vinegar reduced together and poured over at the finish. It is not a background note. It should be assertive.

Ingredients

Serves 6 as an antipasto.

	Metric	Imperial
Aubergines, cubed	800 g	1.75 lb
Celery, from the pale inner ribs	4 ribs	4 ribs
Onion, sliced	1 large	1 large
Passata	300 g	10.5 oz
Green olives, pitted	100 g	3.5 oz
Capers, rinsed	40 g	1.5 oz
White wine vinegar	60 ml	2 fl oz
Sugar	40 g	1.5 oz
Olive oil	for frying	for frying
Basil	a handful	a handful

Pine nuts and raisins appear in some versions, chocolate in a few old Palermo ones. All regional, none wrong.

Method

1. Salt the cubed aubergine in a colander for an hour, then pat it dry. As with melanzane alla parmigiana, this is water removal rather than seasoning.
2. Fry the aubergine in hot oil, in batches, until deep brown. Drain on paper. Do not crowd the pan; crowded aubergine steams and drinks oil.
3. Blanch the celery two minutes, then fry it briefly in the same pan. Set aside.
4. Soften the onion in fresh oil, add the passata, and cook 10 minutes.
5. Add the olives and capers, then dissolve the sugar in the vinegar in a small pan and reduce it by half.
6. Return the aubergine and celery to the tomato, pour over the agrodolce, and cook together five minutes only.
7. Tear in basil. Cool to room temperature. It is better tomorrow, and better still the day after.

What goes wrong

It is a brown mush. Everything cooked together from the start. The separate frying is the recipe.

It is greasy. Aubergine unsalted or oil not hot enough.

It tastes only sweet, or only sour. The agrodolce was not reduced, so it never married. Reduce it separately and taste it before it goes in.

It is bland the day you make it. Expected. This is a dish that needs a night.

Why it works

Sugar and vinegar reduced together form a syrup that coats rather than soaks, so the sourness sits on the surfaces of the vegetables instead of leaching into them. That is why the balance survives two days in the fridge instead of turning into pickle, and why adding vinegar directly to the pan gives a completely different and much worse result.

At the table

An antipasto, served at room temperature, never hot. It sits on the table with bread while people arrive, and it is one of the dishes that makes a Sicilian lunch feel like it started before anyone sat down.

It is better the next day and better again the day after. The vinegar and sugar need time to stop being separate things, and a caponata eaten straight from the pan tastes like its parts rather than itself.

It keeps for the best part of a week in the fridge, which is why it exists: it was made in quantity in summer when aubergines were cheap, and it lasted.

Every town has its own and they genuinely differ. Some carry raisins and pine nuts, some cocoa, some toasted almonds, some a little chocolate in the Baroque towns of the south east. Arguing about which is correct is a regional sport with no possible conclusion.

Bread, yes. Pasta, no. It is not a sauce, and putting it on spaghetti is a thing that happens outside Sicily.

What an Italian would say

That it is an antipasto and not a side dish. That it is never served hot. And in Sicily, that there are as many caponate as there are towns, and that whichever one your grandmother made is the one that is correct.