Prepare and cut the ingredients. Cut the aubergine last, just before you’re ready to start cooking to avoid it browning.
In a large sauté pan, heat the oil and sear the aubergines for 5 minutes, stirring occasionally, then set them aside.
In the same pan, add the onions and celery with a little oil and cook for up to five minutes without too much browning. Set aside.
Sauté the zucchinis with a little salt for 2-3 minutes, then set them aside.
Return the onions, celery, and aubergines (but not the zucchinis yet) back to the pan and mix them together with a wooden spoon.
Add the capers, olives, diced tomatoes, sugar, and vinegar and bring to a boil.
As soon as it boils, adjust the heat to low and add the garlic.
Moisten the ingredients with a little water and leave to cook over low heat for 40 minutes, partially covered.
When done, gently stir in the sultanas and the zucchinis and cook for a further 15 minutes.
To finish this ratatouille with a twist, top it with pine nuts and serve in bowls with a sprinkle of basil leaves.
