Place the bacon in the bowl of a food processor and chop finely.

Chop finely and place on greaseproof paper on a tray in the hot oven.

When cool, pulse them in the processor or chop finely by hand, then sprinkle over the topping.

Scrape the aubergine flesh off the skin and chop finely.

Scoop out and cool, then chop finely and put to one side.