the aubergine slices with the turmeric, salt, and 1/4 teaspoon red chile powder.
Heat the oil in a large, nonstick frying pan
and fry the aubergine
pieces until soft (you may have to do this in two batches). Set the fried aubergine aside.
In a bowl, beat 3/4 of the yogurt with the sugar
, salt, and the remaining red chile powder
. Pour the mixture into a small saucepan
and heat gently, stirring often to prevent the sauce from splitting or breaking, for about 5 minutes.
Stir in the ground cumin and the fried aubergine slices. Heat gently and stir to combine.
Stir in the remaining yogurt, check and adjust the seasonings, as necessary and garnish
with the fresh chopped cilantro.