2 tablespoons extra virgin olive oil
1 large onion, chopped
Salt, preferably kosher, to taste
2 to 4 large garlic cloves (to taste), minced
2 teaspoons coriander seeds, lightly toasted and ground
3/4 teaspoon caraway seeds, lightly toasted and ground
1 1/2 teaspoons paprika
1/2 teaspoon cayenne (more to taste)
2 cups chickpeas, soaked in 2 quarts water for 6 hours or overnight and drained
A bouquet garni consisting of 8 sprigs each parsley and cilantro
2 tablespoons tomato paste
1 tablespoon harissa (more to taste), plus additional for serving
1 1/2 pounds spinach, stemmed and washed thoroughly, or 2 6-ounce bags baby spinach
2 to 4 tablespoons chopped fresh mint (to taste)
2 to 2 2/3 cups couscous (1/3 cup per serving)