Preheat oven to 190°C/375°F. Place pine nuts on a rimmed baking sheet and move to oven. Toast until fragrant and golden, about 5-10 minutes. Make sure to check them at 1-minute intervals after the 5-minute mark to avoid burning. Remove from oven, transfer to a dish and set aside.
On the same baking sheet. arrange the bread slices so the flat side is facing down. Drizzle both sides with 1 tablespoon of olive oil and toast in the oven for 10 minutes, until dry and golden. Rub each slice of bread with the peeled garlic clove. Set aside.
Meanwhile, add 60ml (1/4 cup) of extra virgin olive oil to a large skillet (I like cast iron). Set over medium heat and, once shimmering, add the eggplant along with 1/2 teaspoon of salt. Cook, stirring frequently, until softened and the eggplants have reduced in size considerably, about 5-7 minutes.
Add the pepper, shallots and celery. Toss to combine and cook, stirring frequently, until all the vegetables are softened and cohesive, about 10 minutes.
Add the minced garlic, capers, raisins, tomato paste, cinnamon and toasted pine nuts. Stir to combine and cook for 2-3 minutes, until the raisins are plump and the garlic is fragrant.
Stir in the balsamic vinegar and honey. Cook for a minute or two, just to reduce the sharpness of the vinegar. Remove from the heat and stir in the parsley. Allow to cool for 5 to 10 minutes.
Evenly spoon the caponata over the prepared garlic toasts. Serve hot or at room temperature.