Preheat the oven or air fryer and roast the aubergine until soft. Let it cool, then scoop out the flesh into a blender. (You can do this step ahead and store the aubergine in the fridge.)
Add the garlic, cumin, coriander, smoked paprika, lemon juice, sun-blushed tomatoes, and a spoonful of the preserved oil to the blender.
Blend until smooth, then add the fresh coriander, salt, and pepper. Pulse a few times more to leave a slightly textured cream.
Let the dip rest for 10 minutes before serving to allow the flavours to meld.
Serve with fresh crudités, toast, flatbread or as a spread for sandwiches.