Prick the eggplants with a fork all over and place on a baking sheet, then arrange it on the top level of the oven approximately 6 inches away from the element. Broil the eggplants until the skin is charred, about 20 minutes on one side, then turn them over and cook for 10-15 minutes longer or until the skin is charred and the flesh has collapsed.
Peel the eggplants and put the flesh in the food processor together with garlic, freshly squeezed lemon juice, tahini, olive oil and salt. Pulse until smooth, taste and add more salt if needed. Alternatively you can simply chop up the peeled eggplant, then mix with the remaining ingredients for a chunkier baba ganoush.