Preheat the oven to 250ºF or 120ºC and line one (or two) large baking sheet with parchment paper.

If you use oil, just mix all the ingredients (except the eggplant) in a large mixing bowl. If you use tahini, blend all the ingredients in a blender until smooth and then pour the mixture into a large mixing bowl.

Slice an eggplant in half lengthwise, we're going to use only one half. Then use a mandolin to slice the eggplant into thin strips (⅛ inch or 3 mm). If you don't have a mandolin, use a sharp knife, but the mandolin works much better.

Some people brush the eggplant slices with the sauce, but I prefer to dip them in the sauce, it's simpler and works great. Then wipe it off a little bit the excess.

Place the eggplant slices onto the baking sheet and bake for 45 minutes for one side and another 45 minutes for the other side. The eggplant slices are crispier when they're cool. If you prefer a simpler alternative, just sauté the bacon slices for both sides in a frying pan with some oil until they're golden brown and crispy.

Store the eggplant bacon in a sealed container in the fridge for up to 5 days.