Add the chickpeas and enough water or chickpea cooking liquid to keep the mixture moist, cover tightly, and turn heat to low. Cook for at least 15 minutes, stirring periodically, until sauce has thickened and flavors have blended. (You can hold this dish on low for up to 45 minutes while you prepare the rest of your meal, but add additional liquid as needed and don’t forget to stir, scraping the bottom.)