Harira is a citrusy and savoury soup that is served traditionally as a starter or as a meal.
Start by finely chopping your onion and coriander. Using a knife, carefully remove the skin off your preserved lemon. Cut the skin into strips, remove the seeds off the pulp and finely chop the pulp. Warm up your pressure cooker to medium-high heat. Add onions, coriander and lemon. Cook for 5-7 minutes or until onions become translucent.
Drain your chickpeas and add to the pot. Add your lentils, tomato paste and your 8 cups of water. Add salt, stir and seal your pressure cooker. Cook for 45 minutes. Let all the steam out and carefully open your pressure according to manufacturer's instructions.
Dissolve your cornstarch in 1/4 cup of warm water.Add your spices along with the dissolved corn starch and stir until completely dissolved. Taste to make sure that it's salty enough.