Chargrill the aubergines flat side down on a barbecue or under a grill until blackened.
Slash the aubergines with a knife and insert the sliced garlic into the gaps. Drizzle with olive oil and roast in the oven until the garlic is soft.
Scrape the aubergine flesh and garlic into a food processor with the remaining oil and tahini.
Blitz to a rough puree before adding the lemon juice, salt and pepper.
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