This is based on a recipe from Jill Norman's book, The Complete Book of Spices. The intro to the recipe says, "Couscous with fish is popular along the Tunisian coast. Saffron, cumin and coriander are the usual spices; if you wish, use Tabil instead of the cumin and coriander. Grey mullet or bream would probably be used in Tunisia, but you could use any firm-fleshed fish. Reserve all the fish and vegetable trimmings so you can make a well-flavored stock." When I made this, I used haddock and I took one shortcut: I used pre-made fish stock. I also ignored this recipe’s couscous preparation and used the instructions on the box. I ground the Tabil spice ingredients in my Magic Bullet. For harissa, I used chili garlic paste. I also added a tablespoon of unsalted butter when sautéing the vegetables. With the couscous, and served with a half teaspoon of the chili garlic paste per serving, this took me to my happy place! I love this dish!