Heat the oven to 200C/180C fan/gas 6. Lay the pittas in a single layer on a baking tray and toast for 10 mins until crisp.

Meanwhile, make the topping. Heat the oil in a large frying pan and fry the onion and aubergine over a medium heat for 10 mins until softened. Add the chickpeas and chipotle paste, and cook for another 5 mins. Remove from the heat and stir in the coriander and some seasoning.

Whisk together the crème fraîche, tahini, lime juice and zest, and garlic in a bowl, along with 50ml water to loosen.

To serve, top the toasted pittas with the tahini lime sauce, pile on the aubergine and chickpeas and finish with a sprinkling of coriander, the extra lime zest and lime wedges.