Ingredient:

• 1 pound 85% lean ground beef chuck
• 8 ounces ground lamb
• 1 large egg, lightly beaten
• 1/3 cup finely chopped fresh cilantro
• 1/4 cup grated onion
• 2 tablespoons harissa paste (see Note)
• 2 cloves garlic, minced
• 2 teaspoons ground coriander
• 1 teaspoon salt
• 1 teaspoon cumin
• 1 teaspoon ground turmeric
• 1/2 teaspoon ground ginger
• 1/4 teaspoon ground cinnamon
• 1/2 cup plain yogurt
• 1 1/2 tablespoons tahini (sesame seed paste)
• 1 tablespoon lemon juice
• 1 1/2 teaspoons finely chopped fresh parsley
• 1/8 teaspoon salt