Spicy Beef Koftas With Chickpea Puree

Name: Spicy Beef Koftas With Chickpea Puree
Ingredients: 1 1⁄4 lbs finely ground beef; 1 onion, grated; 2 teaspoons cumin; 2 teaspoons coriander; 2 teaspoons paprika; 3⁄4 teaspoon cayenne; 1 teaspoon salt; 1 bunch chopped flat leaf parsley; 1 bunch chopped fresh cilantro; 1 1⁄4 cups dried garbanzo beans (soaked overnight, drained, cooked); 1⁄4 cup olive oil; 1 lemon, juice of; 2 garlic cloves, crushed; 1 teaspoon cumin seed; 2 tablespoons light tahini paste; 4 tablespoons Greek yogurt; 3 tablespoons butter, melted; salt; pepper