Harissa is a spicy North African sauce or paste made of ground dried chile peppers, garlic, olive oil, and spices like coriander, caraway, and cumin. Primarily Tunisian, harissa is also used in Moroccan, Algerian, and Libyan cooking. Ranging in heat from mild to scorching hot, harissa is used as both a condiment and an ingredient that's stirred into couscous, tagines (stews), soups, and pastas. Look for harissa in tubes, cans, or jars at well-stocked grocery stores and specialty markets. Or try your hand at making a homemade batch, using this recipe.