Preheat the oven to 400°F (200°C).
Prick the eggplant a few times with a fork to allow steam to escape, then place it on a baking sheet.
Roast for 30-40 minutes, or until the eggplant is soft, collapsing, and the skin is charred. Allow it to cool.
Once cooled, cut the eggplant in half and scoop out the flesh, discarding the skin.
In a blender or food processor, combine the eggplant flesh, tahini, olive oil, lemon juice, garlic, and salt. Blend until smooth. Add a touch of water or additional lemon juice if needed to reach your desired consistency.