Leftover caponata will keep, covered in the refrigerator, for up to a week.
Toss with warm pasta; serve on top of meat, chicken, or fish; or simply serve it with some toasted bread or crostini.
1/4 cup olive oil
1 medium onion, chopped
1 celery stalk, chopped
1 medium eggplant, cut into 1/2-inch cubes *I peeled the eggplant in stripes and then cut into cubes.
1 red bell pepper, cored, seeded, and cut into 1/2-inch pieces
1 (14-1/2-ounce) can diced tomatoes with juices
3 tablespoons raisins
1/2 teaspoon dried oregano
1/4 cup red wine vinegar
4 teaspoons sugar
1 tablespoon capers, rinsed and drained
1/2 teaspoon salt, or more to taste.
1/2 teaspoon freshly ground black pepper, or more to taste.
In a large stainless-steel skillet, heat the olive oil over medium-high heat. Add the onion and cook until translucent, about 3 minutes. Add the celery and eggplant and cook until soft, 3 to 4 minutes. Add the bell pepper and cook until crisp-tender, about 5 minutes. Add the tomatoes, raisins, and oregano to the pan. Simmer over medium-low heat, stirring frequently, until the mixture thickens, about 20 minutes. Stir in the vinegar, sugar, capers, salt, and pepper. Season with more salt and pepper, if needed.