Steaming couscous is the only way couscous is made in Morocco. Be sure the steam doesn't escape between the steamer basket and pot. If it is, loosely wrap a long piece of folded plastic wrap over the rim of the pot and then position the steamer on top; the plastic film should create a snug seal.
Drizzle 1/4 cup of oil over the couscous. Toss and roll the couscous around between your hands for a minute to distribute the oil evenly and break up any balls or clumps.
Add 1 cup of water and work it into the couscous in the same way--tossing and rubbing the couscous until all is well blended and there are no clumps.
Transfer the couscous to a lightly oiled steamer basket, taking care not to compress the grains in the process.
Place the basket on the couscoussier and steam for 15 to 20 minutes, timing from when the steam first appears over the couscous. This will conclude the first steaming session.
Then turn the couscous back into your gs3a or large bowl. Allow it to cool briefly, then work in 1 cup of water, using the same tossing and turning as you did before. You may need to use a wooden spoon if the couscous is too hot. If you have heatproof gloves, these will be ideal to use for this process & saves so much time. However if you don't have any and use a spoon, move onto using your hands when the couscous has cooled down enough.
Add the salt in the same manner, then add in another 1 cup of water. Toss, roll and rub the couscous with your hands for a good few minutes, again making sure there are no ball curdles.
Transfer the couscous back to the steamer basket, again taking care not to compress or pack the grains.
At this point, you can add the first layer of vegetables such as the cabbage, tomatoes, pumpkin and carrots, to the couscous pot, before placing the couscous basket on the couscoussier for it's second 15 to 20 mins steaming session. Timing from when you first see steam emerge from the couscous.
Then turn the steamed couscous out into your bowl and prepare again for the third and final steaming, during this time you can add the turnips, aubergine & courgettes to the pot; cover and allow them to cook for 15 minutes while you work with the couscous.
Work 2 to 3 cups of water into the couscous a little at a time as before while breaking up and rubbing the grains between your hands, making sure there are no clumps. You don't need to add all the water if it's not needed.
Taste the couscous for salt and add a little more if desired. Transfer only half of the couscous to the steamer basket this time, again being careful not to pack the grains.
Add any remaining vegetables to the broth, the peppers if using. Top the sauce up with more water if the level has dropped below the vegetables. Taste and adjust seasoning, it should be well flavoured.
Then place the couscous basket back on top of the pot and cook until the steam begins to emerge from the couscous. Gently add the remaining couscous to the basket and continue cooking. Once you see steam rise from the couscous, allow it to steam for another 10 to 15 minutes, or until light and fluffy and the latest additions of vegetables have cooked.
If you would like to try out this couscous recipe but really don't want to mess about with the traditional steaming process, you can opt to use instant couscous, however, be sure to reconstitute it with some broth from this recipe. Avoid making it soggy; it should be as light and fluffy as possible.