Harissa vinaigrette is a spicy and tangy dressing made with harissa paste, olive oil, lemon juice, and garlic. It adds a flavorful kick to salads, roasted vegetables, or grilled meats. The harissa paste gives it a smoky and spicy flavor, while the lemon juice adds a refreshing tang. This versatile vinaigrette is easy to make and can be stored in the refrigerator for up to a week.