I am writing this post for a friend to demonstrate that making caponata is not difficult and I have therefore included many photos.
In my first book, Sicilian Seafood Cooking I have written a whole chapter about making various caponate (plural). This one is Catanese, as made in Catania, and the main ingredients are eggplants and peppers, but there are other caponate where the main ingredients are either eggplants or pumpkin or potato or celery (called Christmas caponata). I have also made a fennel caponata.
All caponate need to be made at least one day before to let the flavours develop. Caponate are eaten at room temperature.
Caponata Catanese is made with eggplants, peppers, celery, onions, chopped green olives and capers. A little sugar, vinegar and a splash of passata are used to make the agro- dolce sauce. Toasted pine nuts (or almonds) and fresh basil make good decoration and add extra taste. Caponata Palermitana, from Palermo, does not include peppers. I used roughly 1 kilo of eggplants and 1 kilo of peppers, 3 sticks of celery (pale green from near the centre), 1 onion. I used about 125g of capers and about the same amounts of chopped green olives. A true Sicilian making caponata would never weigh ingredients and may at times use more eggplants than peppers; these are rough amounts as a guide to illustrate ratios of ingredients. Always use extra virgin olive oil and as much as needed to prevent the ingredients sticking; access oil can always be drained off but bread makes a fine accompaniment to all caponate and the oil is particularly flavourful.
Each vegetable is fried separately but I usually combine the celery and the onion at the same time. the vegetables have different rates of cooking and you want to preserve the individual flavours as much as possible.
A frypan with a heavy base is good to use. I am making large quantities this time to take to a gathering so I am using my heavy wok (Le Creuset).
Fry the eggplants in some extra olive oil and add a little salt. Drain the eggplant in a colander with a container underneath to collect any oil. In the same pan add some new oil and the oil that you have drained from the eggplants. Fy the peppers and add a little salt. Drain them as you did the eggplants, collect the oil and add this to some new oil in the same pan.
Fry the celery and the onion.
When they have softened but the celery still has some crunch add the green olives and capers. Salt may not be necessary for this component of the dish.
Make a small depression in the centre of the vegetables and add about a flat tablespoon of sugar – this varies, some add more, some add less. Melt the sugar (caramelise it) and then add about 3 tablespoons of wine vinegar. Evaporate on high heat.
Add a splash of passata. Mix through the ingredients in the pan and cook it for a few minutes.
Incorporate all of the ingredients .
The caponata is now cooked. It needs to be placed in the fridge in a sealed container till you are ready to eat it and it will not suffer if it is made 3-4 days beforehand.
Decorate it with toasted pine nuts and fresh basil leaves when you are ready to present it.
There are other recipes on my blog for caponate made with different vegetables.