Couscous is Tunisia's foremost dish and most closely tied to its culinary identity, part of the ancient Amazigh (Berber) cooking heritage shared across North African countries. The Tunisian version is known for its distinctive heat compared to its Moroccan and Algerian neighbours, relying heavily on harissa, the famous Tunisian hot red pepper paste that gives the dish its characteristic colour and fiery flavour.

Traditional couscous requires a double-cooking method using a two-tiered «couscoussier» pot: the meat and vegetables cook in the lower chamber, while the semolina grains steam in the rising vapour in the upper chamber, giving them a light, fluffy texture that absorbs the broth's flavours without becoming gluey. The dish is typically served at family gatherings and on Fridays in Tunisia.