Toast the Pine Nuts: Place the pine nuts in a large, dry Dutch oven or heavy-bottomed pot over medium-low heat. Toast, shaking the pan frequently, for 3-5 minutes, until they are golden brown and aromatic. Remove the nuts from the pot and set aside.
Sauté the Aromatics: Heat 2 tablespoons of olive oil in the same pot over medium heat. Add the diced bell peppers, celery, and scallions. Sauté, stirring occasionally, for 6-8 minutes, until the vegetables have softened. Add the sliced garlic and cook for one more minute until fragrant.
Bloom the Flavor Base: Create a space in the center of the pot. Add the tomato paste and cinnamon, and cook, stirring constantly, for 1 minute until the paste darkens slightly. Stir to combine everything.
Cook the Eggplant: Push the vegetable mixture to the sides and add 4 tablespoons (¼ cup) of olive oil to the center. Add the diced eggplant and a pinch of black pepper. Increase the heat to medium-high and cook, stirring occasionally, until the eggplant is browned and tender, about 10-12 minutes.
Simmer the Caponata: Reduce the heat to low. Stir in the rinsed chickpeas, raisins, capers, red wine vinegar, and balsamic vinegar. Stir to combine, then cover the pot and let the mixture simmer gently for 10 minutes for the flavors to meld. If it seems too dry, add a tablespoon of water.
Finish with Fresh Ingredients: Remove the pot from the heat. Stir in the minced mint, parsley, lemon zest, and the toasted pine nuts. Drizzle with the final 2 tablespoons of extra virgin olive oil and stir gently.
Rest and Serve: Allow the caponata to cool to room temperature for at least 20 minutes before serving, as the flavors will deepen as it rests. Garnish with additional fresh mint before serving.